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#redirect [[Portal:Theories about Abilities]]
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This article will archive all of the published and fan '''theories''' that exist for [[powers]] from ''Heroes''.

''For help on adding theories, see the [[Help:Theories and Spoilers|Help section]].''

==[[Intuitive aptitude]]==
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| [[Sylar]]'s abilities may extend beyond just figuring out systems and objects. His intuitive analysis may extend to figuring out "clues" about people and things&mdash;a sort of super-Sherlock Holmes level of observation and intuition. || When Sylar is first imprisoned in [[Sylar's cell|his cell]] and being questioned by [[Mr. Bennet]], he seems to quickly figure out who [[Claire]] is&mdash;that she is the cheerleader he wanted, that she is Bennet's daughter, etc. (''[[Fallout]]'') || {{plus}}Given that he was previously misled as to the cheerleader's identity (''[[Homecoming]]''), it is hard to explain how he suddenly came to these conclusions about Claire, much less her name. If this theory proves true, Sylar figured this out by watching Bennet as they were talking and picking up on intuitive clues, bits of data he did not have before he could "observe" Bennet. He did say that he can figure out what makes ''people'' "tick". <br>{{minus}}An alternative is that Sylar possesses some other [[Telepathy|telepathic]] ability similar to [[Matt Parkman]]'s and was reading Bennet's mind. This seems less likely, however&mdash;especially since [[the Haitian]] can easily block such abilities. <br>{{plus}}Sylar's "native" power of intuition may have been much harder to suppress, and he could still use it even while imprisoned. If his powers were slowly coming back to him after being captured, it may make sense that his first ability was also the first to return and be usable. Also, [[the Haitian]]'s blocking ability seems to work best against powers that require concentration, and Sylar's intuitive aptitude may be something he does unconsciously.
|-
| [[Sylar]] might be able to "fix" himself on a molecular level. || Sylar recovers rapidly from bullet wounds. (''[[Road Kill]]'')||
{{plus}}This could also explain how he acquires powers. He adds other [[evolved human]]'s DNA to his, which would make him sick, unless he could integrate it into his own. <br>{{plus}} This could also explain how [[Sylar]] recovered from being drugged by [[Mohinder]]. While it originally impaired the parts of his brain required to use his telekinesis, he soon figured out what exactly it was doing to his brain, and figured out a way to avoid the effects until his telekinesis recovered enough to turn off the IV. <br>{{minus}} This would also mean that he would be able to heal himself, and therefore wouldn't need [[Claire]]'s powers.
|-
| It is quite possible that this ability is what allows [[Sylar]] to "absorb" the powers of his victims, removing their brains and analyzing them in order to see how the power works and is manifest, his brain then adjusting itself to accommodate this. ||
Sylar makes a neat incision to [[brain removal|remove]] his victim's [[brain]]s. (''[[Seven Minutes to Midnight]]'', ''[[Homecoming]]'', ''[[Parasite]]'') Sylar has mentioned seeing how his victim's powers work as he attacks (''[[Six Months Ago]]'', ''[[Parasite]]'')
|{{note}} Were [[Sylar]] merely ingesting the brains, such a precise incision would not be necessary.<br>
{{note}}While this self-adjusting could be explained by his telekinetic abilities, that would not explain how he acquired [[Brian Davis]]'s telekinetic powers in the first place. While Mr. Bennet confirmed that Sylar has multiple abilities, it was implied that he had only one "innate" ability, suggesting that a non-superpowered method was used to acquire Davis's powers. <br>{{plus}}The brain constructs new neural pathways as it learns new things. Often this process is slow and takes repeatability, and over time those neural connections become shorter and more efficient. With [[Sylar]]'s ability, those neural pathways construct and reconfigure instantly, just by looking at an object. Since he already has the DNA for an evolved human, such automatic reconstruction in his brain may be all that's needed to acquire a new power instantly and with a large degree of mastery.
|-
|Intuitive Aptitude, contrary to our current understanding, may only actually involve the understanding of individuals and their biological workings.||None.||{{note}} Although Sylar was able to point out the problems with [[Chandra]]'s watch, this may just be through his expertise as a watch maker. The term "to see how things work" may just be used as a gimmick, and not literal to everything that has a structure.<br> {{plus}}The [[:Image:Sylar dossier.jpg|dossier]] mentions his ability to understand the biological workings; the absorption of [[Charlie]]'s power may explain why he is able to adapt to his new powers relatively quickly, often exhibiting greater control over them than their original owner.
|}

==[[Isaac's paintings]]==
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| The [[prophecy|visions]] in [[Isaac's paintings]] may be inevitable and fated to occur.
| Most of [[Isaac's paintings]] have come true. (See ''[[Prophecy]]'' for examples and citations.)
| {{plus}}So far, the envisioned imagery occurs, even if the underlying event/circumstances are not as initially expected, i.e. a cheerleader died even though it did not turn out to be [[Claire]] as believed and feared by the characters. <br>{{note}}By this reasoning, [[the explosion]], or the [[Peter's vision|vision]] of it at the least, may be fated to occur as (although it may not necessarily be Peter who explodes) Isaac has already painted it (presuming it is one of his vision paintings, as it seems to be).<br>{{minus}}In an [http://www.comicbookresources.com/news/newsitem.cgi?id=8758 interview], the writers implied that Isaac's paintings are only a possible future outcome. Nevertheless, so far nearly all have come true. One consideration is that if the visions in the paintings could be completely averted, the story could be left with the inconsistency of Isaac's paintings (done using his power) no longer foretelling the future. However, this could be addressed, possibly as a predicted event that was barely prevented at great effort and cost (presuming, of course, the evolved humans will succeed in preventing the explosion somehow). Or the inconsistency could be ignored as was Charlie's not seeming to remember Hiro from 6 months before when meeting him again.
|-
| Isaac's paintings show what might happen, not what will happen.
| Minor inconsistencies in the outcomes of the paintings indicate they may be less-than-perfect. (See ''[[Prophecy]]'' for examples and citations.)
| {{plus}} For the most part, every event that Isaac has painted has come true - albeit not exactly as envisioned. <br>{{plus}} For example, Isaac experiences a vision and sees [[Claire]] fall down alone on the steps. (''[[Collision]]'') Later, because of Isaac's paintings, Peter is there to help Claire up and see her to safety. (''[[Homecoming]]'') Given the speed at which Peter is running (he is with Claire just as she falls), he should have been in the painting too if Isaac had seen a predetermined event. <br>{{plus}}Another minor inconsistency is in the painting of [[Hiro and the Dinosaur (painting)|Hiro and the Dinosaur]]: in the painting, [[Hiro's sword]] is unsheathed, while in reality, the replica sword was sheathed. Whether this event will ever appear exactly as depicted is not yet clear. <br>{{note}}In a blog post, [[Greg Beeman]] noted that the inconsistencies in the Homecoming paintings arose because the scenes had not yet been filmed when [[Tim Sale]] painted the paintings. He usually creates the paintings using photos from the filming, leading them to be very precise reflections of one another. However, paintings made prior to filming sometimes depict events that can't be filmed exactly as depicted.<br>
{{note}}The only instances when Isaac's paintings have been shown to be inaccurate have been as a result of some of the people involved having viewed the paintings, suggesting that the paintings were accurate at the time that they were painted, but the events were altered by people changing their actions after seeing the paintings.
|-
| [[Isaac's paintings]] are eyewitness testimony of what he saw in his vision.
| [[Isaac]] sees the events unfold as he paints them. (''[[Collision]]'') Isaac paints [[Peter]]'s location repeatedly, but fails to paint an invisible Peter. (''[[Distractions]]'')
| {{plus}}Eyewitness testimony is infamously fallible. Isaac paints Hiro with a sword, facing a ''T. rex''. What he missed in that moment was that the ''T. rex'' was not actually alive and the sword was not naked. He painted what he could remember of the flash of vision. Many of Isaac's paintings are ambiguous. Some paintings from the ''[[Homecoming Series (painting)|Homecoming Series]]'' have been misinterpreted because of their equivocal nature. <br>{{plus}}In ''[[Distractions]]'', Isaac tries to find Peter using his paintings but is only able to paint a series of landscapes. It is not until the end of the episode that he realizes his paintings did show where Peter was, but that Peter (because of Claude's presence) was invisible. Since Isaac couldn't see Peter in the visions, this seems to support this theory that Isaac's visions are subject to normal visual limitations.
{{note}} Isaac's eyes glaze over when he paints. This could represent him being somewhere else, or could show that he is no longer using his eyes, painting with his mind with seemingly no control.
|-
| [[Isaac]] paints in a fugue state and is not aware of the content of his paintings while creating them.
| None.
| {{plus}}In ''[[Distractions]]'', Isaac paints Peter's location but is not aware until afterwards that Peter was invisible. He appears to need to study his paintings afterwards in order to derive meaning from them, as he needs to notice [[Peter]]'s footprints to find him.
|}

==[[Liquefaction]]==
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| After an object melts, it re-solidifies. || Shadows and gaps are visible under some of the "puddles" in [[Zane Taylor's home]] where they don't meet the tarp, and some of them have thick, rounded edges. (''[[Run!]]'') || {{plus}}This may change the definition of the power further, to "the ability to disassemble an object's molecular structure."<br>
{{note}}This could be simply a prop mistake.
|-
| Organic matter cannot be liquified. || Zane's body was shown completely un-liquified. (''[[Run!]]'') ||{{plus}} He was on tarps so [[Sylar]] may have tried to liquify but could not. <br>{{minus}}Zane may have been immune to his own power, just as those with invisibility are immune to invisibility effects they have on others, and those who can create fire or radiation are not burned, and those who can stop time are not themselves stopped.<br>
:{{note}} Zane's brain was already removed, and thus if Zane's power and his immunity to his power were housed in his brain, Zane wouldn't have been protected from being liquified if Sylar so chose to do so. <br>
{{minus}}There were tarps everywhere, it was likely just that there were already tarps in the room that he was killed in. [[Sylar]] had no reason to care about making a mess of [[Zane Taylor's home]]. <br>{{minus}} Sylar might not have been intended by the writers to liquify Zane's body as he would need Zane's DNA for [[Mohinder]] later.
|-
| If Zane got a sword, and liquefaction was reversible, then, with sufficient training, he can morph the blade into several different shapes depending on the necessary occasion. || None.|| {{minus}}Zane is dead. <br>{{plus}}[[Sylar]] may be able to do this, assuming he gets the sword from [[Hiro]].<br>
|}

==[[Powers]]==
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| All [[evolved human]] [[powers]] are manifestations or variations on the classic psychic abilities of [[telepathy]], [[telekinesis]], and extra-sensory perception (ESP). || According to [[Chandra Suresh]], all powers appear to originate from a particular mutation in the brain. (''[[Six Months Ago]]'') ||{{plus}} If true, [[enhanced strength]] and [[regeneration]] are manifestations of telekinesis; [[mental manipulation]] is a variant of telepathy; [[precognition]] and [[electronic data transception]] are types of ESP, etc.<br>{{plus}}Sylar, using his ability to discern how things work, identifies the brain as the source of powers, and takes powers after opening up the brain, including super-hearing which would normally be associated with the ears. When Claire's brain is damaged, she is unable to regenerate until the stick is removed. <br>{{plus}}This idea is supported by the Haitian's ability to negate other [[evolved humans]]' powers. Given the fact that an evolved human can only possess one innate power, his must involve [[mental manipulation]] as shown by his ability to remove memories. Therefore, because he can prevent the use of powers, they themselves must be mental or psychic.
|-
| All [[evolved humans]] have the same power, they just manifest different aspects of it. || None. ||{{plus}}Both [[Peter Petrelli]] and [[Sylar]] are able to acquire seemingly any power. The underlying core power may be a special connection with a different level of reality, with the ability to both sense more and to manipulate reality under the control of the mind.<br>{{minus}} A counter to this is that when [[Sylar]] is jailed, it is suggested he has DNA for [[telekinesis]]. This contradicts [[Chandra Suresh]]'s belief that they all share the same mutation. It could be that the same genetic mutation can manifest itself in different ways for different people.<br>
{{note}}This could be a scripting mistake, as Sylar acquired his powers from [[Brian Davis]]. On the other hand, Mr Bennet states that Sylar has been altering his DNA, raising the question of why his other acquired powers did not show themselves in his DNA.
|-
| Children of [[evolved humans]] are likely to have [[powers]], and they manifest them at an earlier age than "first generation" evolved humans.
| [[Micah Sanders]] and [[Claire Bennet]] discovered their powers at an earlier age than the other powered characters. (''[[Nothing to Hide]]'', ''[[Six Months Ago]]'')
|{{plus}}Micah and Claire each have two parents with powers. <br>{{note}}[[Molly Walker|Molly Walker's]] [[James Walker|father]] presumably had powers (he was on the [[List]] and targeted by [[Sylar]]), she too has powers. [[Sanjog Iyer]]'s parents are unknown. Not enough is known about [[Simon]] and [[Monty Petrelli]] to determine the power status of children with only one powered parent.<br>{{plus}} In a possible future, Matt's child is implied to be an evolved human.
|-
| Natural-born super powers are a result of [[evolution]] and adaptation being influenced by the subconscious whims of the subject. In short, a person gets an ability that helps them in their day-to-day life, based on what they (either consciously or subconsciously) think they need. || None. || {{plus}}Peter's empathy would be useful in an occupation (nurse) that depends on feeling and healing the suffering of others. Nathan first manifested his flight power when he needed a fast escape. <br>{{plus}}Matt's telepathy could be useful for a cop and a man who struggles in knowing what he should say to people. <br>{{plus}}Niki vocally expressed her desire to be two people and her worries about being strong enough for her son several times. <br>{{plus}}D.L.'s ability to phase through matter would certainly be useful for a man in prison seeking escape. <br>{{plus}}Sylar's ability to understand how complex systems work would be a boon to any watchmaker. <br>{{plus}}Additionally, [[Tim Kring]] has stated in interviews that the character's powers are reflections of their personalities.<br> {{plus}} Charlie was a waitress and her powers of memorization would greatly assist her in taking and delivering orders.
|-
| [[The Company]] has the capability to alter the DNA of people they deem worthy. || Mr. Bennet made an off-hand comment about how the people with powers "don't always deserve them" and how his organization is working to fix that. (''[[Godsend]]'') || {{minus}}[[Hana Gitelman]] claims she was genetically altered to have powers by [[the Company]], but her belief is as yet unsupported. Given that she is out for [[revenge]] against [[Mr. Bennet]] by any means necessary, her word is suspect. <br>{{minus}}Mr Bennet's comment could simply be suggesting that the Company either kills or imprisons those it deems "undeserving".<br>{{minus}} In ''[[Company Man]]'', Mr. Bennet tells Matt (who can discern if someone is telling the truth) that the Company does not make people the way they are.
|-
| [[The Company]] doesn't "give" people powers, but can make them manifest earlier. || [[Matt Parkman]] had already experienced [[telepathy]] prior to his first known abduction (''[[Don't Look Back]]''), and is on [[the list]]. (''[[Homecoming]]'') || {{plus}}[[Hank]] was testing [[Sylar]] for abilities (''[[Godsend]]''); the emergence (and in Matt's case massive augmentation) of their original abilities may be merely a side effect. <br>{{plus}}[[Hana]]'s training with the Company seemed to involve extensive medical monitoring as if they expected her level of control to change suddenly.<br>{{minus}} In ''[[Company Man]]'', Mr. Bennet tells Matt (who can discern if someone is telling the truth) that the Company observes the person's ability and monitors them.
|-
| [[The Company]] doesn't "give" people powers, but rather gives them more control over their powers. || [[Matt Parkman]] had already experienced [[telepathy]] prior to his first known abduction (''[[Don't Look Back]]''), and is on [[the list]]. (''[[Homecoming]]'') [[Isaac Mendez|Isaac]] was able to paint the future without [[heroin]] shortly after his stay with the Company. (''[[Fallout]]'')|| {{plus}}[[Hiro Nakamura|Hiro]] hasn't been to the Company, so his control is dwindling. His later reacquisition of his powers could be said to show that the Company does not have a monopoly on power-refinement techniques.<br>{{plus}}Peter, with the help of Claude, a former Company "employee", was able to control the many abilities he absorbed.<br>{{note}}Perhaps there is a natural limitation on the frequency with which one can use their powers, and the radioactive isotope injected into their blood has been found to counteract this limitation.
|-
| The powers are designed by a higher power. || None. || {{plus}}There are many references to religion in ''Heroes''. For example, many of the characters are named after biblical figures. Also, Chandra Suresh's door is number 613, a holy number in the old testament. <br>{{plus}}The creators of the show have also hinted that there's a supernatural element to the character's powers. [[Tim Kring]] studied divinity in school, and [[Joe Pokaski]] and [[Aron Coleite]] have commented on the preponderance of Biblical names. <br>{{minus}}However, religious symbolism doesn't necessarily imply a religious cause.
|-
| All powers are actually physical manifestations of emotions. || None. || {{plus}}[[Peter Petrelli]] is referred to as an empath. He exhibits traditional empathic abilities. The mimicking of powers is just an expression of his empathy of the feeling.<br>{{plus}}[[Ted Sprague]] uses anger to control his power.<br>{{plus}}[[Nathan Petrelli]] seems to only fly when scared - especially when it first triggered.<br>{{plus}}[[Claire Bennet]] may have healing triggered through pain.<br>{{note}}The other characters may be using different emotions to get to their powers, though there are many powers that this doesn't seem to fit for--D.L.'s phasing, Micah's technopathy, etc.
|-
| All [[powers]] also have compensatory secondary abilities that make their use survivable and usable. || [[Meredith]] is unharmed by her own fire. (''[[Distractions]]'') [[Ted]] is unharmed by his own radiation. (''[[Company Man]]'') [[Nathan]] seems immune to the air pressure and wind sheer effects of supersonic flight. (''[[Hiros]]'') ||{{plus}}Claude's invisibility would also render him blind, as it would make his retinas unable to refract light. He possesses some kind of compensatory mechanism in order to see, which is what allows Peter to see him. <br>{{plus}} [[Hiro]] and apparently [[Peter]] negate the effects of the lack of molecular motion which would result from suspending time which would theoretically cause absolute zero temperatures.<br>
:{{plus}}This would also explain why changes can be seen when time is frozen. This is because if time stopped, the motion of the light waves would also stop, meaning everything would look the same even if it was different, simply because the light would not yet have been able to reflect off of the objects under the new circumstances.
|-
| Twins have the same or similar powers. || None. || {{plus}}Twins (in popular culture) are closely connected both genetically and emotionally and generally share similar traits, even when separated.<br>
{{note}}As we have yet to see any twins in the series, this remains untested.
|-
| Powers are the result of a virus. || None. ||{{plus}}Viruses alter DNA, and transposons literally can cut and paste genetic material and have had a large impact on evolution. 40% of human evolution is the result of transposons. The long incubation time in some viruses could mean mutation caused in such a way wouldn't manifest until late in life in the first generation, and late childhood/early teens in the second generation.<br>{{plus}} Many virus have a single strand DNA/RNA code. And had been stated that the "Symbol" represent a single RNA helix.<br>{{plus}} A virus could preferredly infect brain cells, and that is why Sylar need to "eat" them.<br>
{{minus}}There has so far been no suggestion that abilities can be transferred to another through infection. Nor has it been confirmed that Sylar eats brains (and, at the risk of sounding unencyclopaedic, it would be really dumb if he did).
|-
| Abilities are passed on maternally. ||None. || {{plus}}Nathan's two sons have yet to show any abilities, yet Micah and Claire, both children of mothers with abilities, have.<br>{{minus}}It could be simply that somebody is more likely to demonstrate abilities if both parents are powered than if just one is.
|-
| Animals may develop powers as well. ||None. ||{{plus}}In this show, all around the world, humans are evolving and developing [[Power|extraordinary abilities]]. It wouldn't seem much of stretch to say that other species are not part of this evolutionary process.<br />
{{minus}}According to evolutionary theory, a new feature originates in a particular branch of the evolutionary "tree" and spreads only in descendants of its originators; it does not jump from one branch of the tree to another. Since superhuman powers originated in the human branch of the tree, it should not appear in others.<br />
{{minus}}Evolutionarily speaking, animals should have developed similar abilities. Convergent evolution is the reason why the eye has evolved over seven times independently. If these abilities are possible, they're also possible for animals. However, many of these abilities would probably cause the animals that possesses them to die before they reached sexual maturity, such as those of Sprague or Claire's mother. Other abilities, like technopathy and Hana Gitelman's ability, would have been completely useless, and therefore there would have experienced no selective pressure in the gene pool.
|-
| [[Ando]], [[Simone]], [[Charles Deveaux]] and [[Mohinder]] all have undiscovered powers. || None. || {{plus}}Everyone in Peter's dreams are already pre-existing known empowered individuals, with the particular exception -- thus far -- of these three.<br>{{minus}}Simone has died, but it is possible she had an undiscovered power. <br>{{minus}} [[Tim Kring]] has stated that neither Ando nor Mohinder will ever get a power.
|-
| No two [[evolved humans]] have the same power. || The only evolved humans to have more than one power are [[Peter]] and [[Sylar]] but technically they have other evolved humans' powers. || {{plus}}So far, no two heroes have shown the same power. <br>{{plus}}[[Chandra]]'s research may refer to different variations of the same power, not the exact same one.<br />{{minus}}[[Claude]] identified [[Peter]] as an [[Empathic mimicry|Empath]] (or, as he put it, "one of those"), indicating he'd seen the power before.
|-
| The gene which controls the development of a power within an individual's brain is a recessive one. Therefore, any child of two powered parents should have powers, as well. ||None.
|{{plus}}[[Niki]] and [[D.L.]] both have powers, and their son [[Micah]] has his own power.<br />
{{plus}}Both [[Meredith]], [[Claire|Claire's]] mother and [[Nathan]], Claire's father, have powers, thus Claire has a power of her own.<br />
{{plus}}The two sons that Nathan has had with Heidi, his wheelchair-bound wife (who is not an evolved human), do not possess any known powers.<br />
{{minus}}There are only two such cases featured in the series thus far that can be used in evidence to support this theory (see above).<br />
|-
|}

==[[Rapid cell regeneration]]==
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| With frequent use, this power renders the user to be able to feel only minimal pain, if not no pain at all.||None.||{{plus}} In almost all cases of Claire regenerating herself, she has exhibited little or no signs of visible pain. However, due to Peter Petrelli's infrequent use of his regeneration powers, he feels pain whenever he is sufficiently injured. (i.e. Sylar's attempted headcutting in [[.07%]]; Peter shrieks in pain - compare to Sylar's headcutting in [[Five Years Gone]], where Claire does not show any visible signs of pain)<br>{{minus}} Claire screams "Ow!" when Lyle staples her. (''[[Nothing to Hide]]'')
:{{plus}} Claire could very well have said "Ow!" out of shock/surprise than any real pain. This is furthered by the fact that she showed barely any pain at having her hand mangled by a garbage disposal unit. {{epp|101}}
{{minus}} Claire showed that she was in pain through her facial expression when she grabbed the extremely hot muffin tray. (''[[Better Halves]]'')
<br>{{note}} Claire didn't even feel the Rib sticking out of her side until Zach pointed it out to her. <br> {{note}} It is possible that the effect is psycological. Claire knows beyond a shadow of a doubt that pain is temporary, so she has unconsciously learned to ignore it. <br>
|-
|}

==[[Rift]]==
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|Rifts are holes in space and time, caused by paradoxes and other conflicts in causality.
|[[Future Hiro]] states he risks causing a rift by returning to the past. (''[[Hiros]]'')
|{{plus}}[[Hiro]] would have created a causality paradox by going into the past (i.e. if he saves [[Charlie]] from [[Sylar]], he never has a reason to go back and save her), which could theoretically create a rift--possibly explaining his sudden return to the present. Hiro has not been able to fully access his powers since. This is also one common definition of a temporal rift in science-fiction literature. The fact that he kept his message ("Save the cheerleader, save the world") ambiguous supports the fact that [[Future Hiro]] was trying his best to alter the past without creating a paradox.
|-
|Rifts interfere with the abilities of time-travelers, either by leaving time-travelers unable to use their powers or by creating points in time they cannot travel to.
|Future Hiro speaks of rifts as something to be avoided. (''[[Hiros]]'')
|{{plus}}Also, Hiro's powers do not function properly after his trip to the past to save Charlie.
|-
|Rifts are not portals in space and time.
|None.
|{{plus}}While a rift, in science fiction literature, can refer to either a portal in space/time or a wound in space/time, it seems clear by the context of Future Hiro's remarks that they are using the latter sense of the word as rifts are suggested to be a bad thing.
|-
|Hiro may have experienced a rift when he tried to go back in time to prevent Charlie's murder.
|After Hiro and Charlie confess their love for each other and are about to kiss, Hiro abruptly and unexpectedly jumps through time to the present. (''[[Six Months Ago]]'')
|{{plus}}He later told [[Ando]] that he tried repeatedly to go back to save Charlie, but couldn't. In theory, space-time spontaneously corrected itself to keep Hiro from creating a causality [[paradox]]; he could not do anything in the past that would keep him from having a reason to go to the past.
|-
|}

==[[Space-time manipulation]]==
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| It is possible to change past events. || [[Future Hiro]] implores [[Peter]] to save the cheerleader in order to stop "all of it" from happening. (''[[Hiros]]'')<P> The photograph of [[Charlie]] on her birthday is clearly different after Hiro travels to the past. (''[[Seven Minutes to Midnight]]'')<P> [[Claire]] lives another five years in hiding after [[Sylar|Sylar's]] first attempt to kill her, thanks to [[Future Hiro|Future Hiro's]] trip back in time. (''[[Five Years Gone]]'') || {{plus}}It seems unlikely that Future Hiro would risk a [[rift]] if there were not some possibility that his powers allowed him to change his own past. Even if causality would not allow him to take direct hand in things (as he tried and failed to do with [[Charlie]]), he could still steer past events indirectly, as he did with Peter.
{{plus}}From a writing stand-point, it doesn't make sense for Hiro and [[Isaac]] to have the powers that they do if they cannot use those powers to change future events.

{{note}}It is possible for Hiro to change past events, just not directly, meaning he can't go back in time and change something himself but he can go back in time and tell someone in that time to do something (as he does with Peter).
|-
|There is some kind of higher-power/cosmic authority that prevents [[Hiro]] from creating [[paradox]]es.|| When [[Hiro]] seems on the verge of saving [[Charlie]] and thus causing a causality paradox, he returns unexpectedly to the present. (''[[Six Months Ago]]'') || {{plus}}Hiro's forced return to Present-Day Japan and inability to use his powers to go back and make further attempts to save Charlie Andrews suggest that something is blocking his ability to go back to that specific point in space time. <br>{{plus}}Also, Future Hiro has to get someone else to go back to present-day [[Odessa]] to save [[Claire]] rather than taking matters into his own hands, perhaps due to his inability to return to that point in space and time due to a rift his past self created.
|-
|[[Hiro]]'s presence in the past manipulates objects, but not people's memories.|| [[Charlie]] does not recognize [[Hiro]] when she first meets him in the present. (''[[Seven Minutes to Midnight]]'') || {{plus}}[[Charlie]] still had a Japanese phrasebook in the present after Hiro gave it to her in the past. Yet Charlie did not seem to remember Hiro when he first came to [[Odessa]] in the present nor did any of Hiro's co-workers at the diner recognize him despite his having worked there six months earlier. The change in the photograph of Charlie's birthday party also shows an object recording a historical event that nobody remembered. <br>{{minus}}However, when Ando shows the photo to [[Lynette]], she does recognize Hiro, telling him "they were tight". This suggests the common comic book device of a second time dimension - the timeline is changed only "after" the time-traveler goes back in time to change them. <br>
:{{note}}However, this would raise the question of who gave Charlie the Japanese phrase book "before" Hiro traveled back in time. This suggests that the timeline can be changed, but not in a way that would give the time-traveller no reason to travel back in time (which would create a paradox).
|-
|There is no predestination in the world of ''Heroes''. || [[Hiro]]'s trip to the past appears to have actually changed past events from his perspective. (''[[Six Months Ago]]'') || {{plus}}If Hiro's trip to the past to try and save Charlie were meant to have happened, then all of his former co-workers at the diner (to say nothing of Charlie herself) should have recognized Hiro when he came into the diner for the first time, six months after he had been working there.
{{plus}} From a writing stand-point, it doesn't make sense for Hiro and Isaac to have the powers that they do if they cannot use those powers to change future events.<br>
{{note}}However, although some events can be changed, it seems that others (such as Charlie's death at the hands of Sylar) are immutable.

{{plus}} [[Future Hiro|Future Hiro's]] trip to the past allowed [[Claire]] to live five years longer following [[Sylar|Sylar's]] first attempt to kill her. This shows that the timestream can be altered. (''[[Five Years Gone]]'')
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|Hiro may be able to freeze, reverse, and fast-forward time around a specific location. || Hiro concentrates on [[Hope]] and the gun, the bullet stops, then reverses back into the chamber. When time begins to move forward again, however, the police arrive before Hope shoots, showing that time was not turned back for the whole world. (''[[Unexpected]]'') || {{plus}}In ''[[Genesis]]'', Hiro claims to have caused a subway train to be late by 14 seconds. If this was actually a manifestation of his power and not merely a coincidence, then only the train slowed down, not all of space-time (as is normal with Hiro's power).<br>
{{note}}There is a theory that it was actually a power of Ando's that moved the bullet back.
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| Hiro cannot control where (or when) he teleports, but rather teleports somewhere that is in danger, ala Quantum Leap. || Hiro teleports to [[New York City]] before and after the [[explosion]]. (''[[Genesis]]'', ''[[Parasite]]'') || {{plus}}In Genesis he was focusing on an advert for New York, and in 'Six Months Ago' he went to the place he had intended if not the exact time frame.
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|[[Hiro]]'s power is prevented from creating a causality paradox by not allowing him to change anything in the past which would prevent him from making the trip in the first place.|| When future Hiro spoke with [[Peter]], he said that Peter was the only one who could help. (''[[Hiros]]'') || {{plus}}Hiro went back to talk to Peter, because when performing a time-stop, if he enters the same vicinity as Peter, Peter will unintentionally mimic the time-stop. This will allow Hiro to speak with Peter, because Peter's power maintains the time-stop. Hiro's may normally stop, and return him to his own time, but Peter isn't creating a causality paradox, because he hasn't traveled back in time, merely stopped time, thus allowing a loophole in Hiro's apparent causality paradox prevention system.
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| Hiro's ability is the cause of others' abilities, by transporting himself or someone else into the past. It would represent a closed loop. || None. ||
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[[Category:Theories]]

Latest revision as of 20:49, 19 November 2007