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If your going to think about time travel and how it really works I think you will also have to simultaneously tackle the "double slit experiment" the phenomenon
by maeon3 16y ago
If your going to think about time travel and how it really works I think you will also have to simultaneously tackle the "double slit experiment" the phenomenon where a single electron exists in an infinite number of superpositions, all modifying its own existence, while coming to rest as a collapsed wave form as a single particle.
The double slit experiment proves to us that a one-universe linear view of time doesn't work. For a particle to seemingly interact with ITSELF, then go back, pick one route, and hit the wall as a particle means that quantum events seem to thumb its nose at our notion of time.
http://www.youtube.com/watch?v=DfPeprQ7oGc http://www.youtube.com/watch?v=DfPeprQ7oGc
If you want do some time traveling yourself, use a laser pointer and three mechanical pencil leads:
http://www.youtube.com/watch?v=UANVMIajqlA&feature=related http://www.youtube.com/watch?v=UANVMIajqlA&feature=relat...
- xtacy 16y agoI am not sure if that means that our notion of _time_ is completely broken. You're assuming an electron is a sphere, that goes like a tennis ball through one slit, then goes back in time through another slit to interfere with itself. In Quantum Mechanics, there is no such thing as a _particle_ taking _this single path_. There is a continuum---that of the probability distribution of the position of the particle in a region of space, by the very axioms of QM. By definition, the statement "an electron exists here" has no meaning in QM.
- cheez 16y agoThat's the part that gets me: the particle seemingly interacting with itself. How do you know that it is indeed the same particle interacting with itself??!!
- maeon3 16y agoBecause even when you fire electrons one at a time through 2 slits, the same wave pattern is seen to emerge. It appears as though a single electron explores every one of its options before it chooses a single route. The exploration process seems to leave footprints in a universe we can't see which causes the electron to behave strangely.
- cheez 16y agoI need to do this experiment for myself. I just don't believe it...