Spica75 wrote:AFAIK, that principle is about the limit to what extent we can know where or in what state something is, not that particles can appear out of nothing. It´s a huge difference between "we cant measure all particles or energies" and "particles and energies can appear out of nothing".
The creation of virtual particles out of nothing cannot be observed -- but the
consequences can, at least in theory. In most cases, you'll get a particle/antiparticle pair. Normally they would recombine, but under extraordinary circumstances they may not. That's one explanation of Hawking radiation: a particle/antiparticle pair appears near the event horizon of a black hole, and the black hole gulps up one of the pair. That leaves the other particle wandering about, scratching its head and wondering where its soulmate is. The result is radiation. Now I admit, I'm neither a particle physicist nor a cosmologist -- but there are enough of them saying this kind of thing.
Spica75 wrote:Why would they appear?
Never ask a physicist "why". The best you'll get is a nested series of "how" that ends up in a different "why".
Spica75 wrote:Like timetravel, it´s a very popular concept to play around with(especially in fiction), but the reasoning behind always seems to fall apart when looked at.
If the reasoning falls apart, get some glue and put it back together any way you like.
Spica75 wrote:I´ll admit that unlike timetravel, there is a tiny chance that the universe is really a multiverse of one sort or another, but the more i went over it, the more unlikely i found it. To the point where I consider the probability negligable at most.
String theory predicts extra dimensions. We're familiar with our three spatial dimensions, and then there's the time dimension. That makes four. I've seen theories with ten dimensions on up. If those dimensions exist, who knows what they're doing? Perhaps that's where paratime is hiding!
But it all comes down to this: nobody has really
proven the multiverse, extra dimensions and all, exists. So if the full set of rules is unknown, do what makes your story work. Because if you're playing with anime, and especially Sailor Pluto, the material universe is only a suggestion.