“This is not important. For us who are convinced physicists, the distinction between past, present, and future is only an illusion, however persistent.”
I wonder if Einstein ever got out of a parking ticket with argument?
So let's assume that we live in one space-time continuum.
You probably could travel back in time, just as we travel spatially. What keeps it from happening though is that it takes a huge amount of energy (because you're changing the fabric of space-time to a much greater degree when you time travel than when you space travel), so it's not going to happen.
Albert Einstein’s secretary was so burdened with inquiries as to the meaning of “relativity” that the professor decided to help her out. He told her to answer the inquiries as follows: “When you sit with a nice girl for two hours you think it’s only a minute, but when you sit on a hot stove for a minute you think it’s two hours. That’s relativity.”
Talked to a guy a few days ago that said something like....Time is merely a convenient choice to experience the physical world. There is no there. And if anything is moving or occupying place it is consciousness.
He did have good wine.
Interesting. At least some physicists seem to be approaching an understanding of the Eternal Now.