An object you can see in front of you may exist simultaneously in a parallel universe.
“When you observe something in one state, one theory is it split the universe into two parts,” Cleland told FoxNews.com, trying to explain how there can be multiple universes and we can see only one of them.
The multi-verse theory says the entire universe “freezes” during observation, and we see only one reality. You see a soccer ball flying through the air, but maybe in a second universe the ball has dropped already. Or you were looking the other way. Or they don’t even play soccer over there.
Carroll suggests that we don’t exactly feel time — we perceive its passing. For example, time moves fast on a rollercoaster and very slowly during a dull college lecture. It races when you’re late for work . . . but the last few minutes before quitting time seem like hours.
“Time seems to be a one-way street that runs from the past to the present,” says Fred Alan Wolf, a.k.a. Dr. Quantum, a physicist and author. “But take into consideration theories that look at the level of quantum fields … particles that travel both forward and backward in time. If we leave out the forward-and-backwards-in-time part, we miss out on some of the physics.”
Wolf says that time — at least in quantum mechanics — doesn’t move straight like an arrow. It zig-zags, and he thinks it may be possible to build a machine that lets you bend time.
Cleland has proved that quantum mechanics scale to slightly larger sizes. The next challenge is to learn how to control quantum mechanics and use it for even larger objects. Do so — and we might be able to warp to parallel universes just by manipulating a few electrons.
“Our concepts of cause and effect will fly out the window,” says Ben Bova, the science fiction author. “People will — for various reasons — try to fix the past or escape into the future. But we may never notice these effects, if the universe actually diverges. Maybe somebody already has invented a time machine and our history is being constantly altered, but we don’t notice the kinks in our path through time.”