Science questions

If string theory were true and every timeline that were possible happened, one would think one of those infinite possibilities would produce a timeline in which inter-dimensional travel were possible. If the big bang happened slightly differently there would be different laws of physics. Out of infinite possibilities, one of those travellers (or, an infinite number) would find their way even to our meager world. Yet string theory postulates that we could obviously be in a timeline in which this didn’t happen, there is also an infinite number of timelines in which this does happen. Both must be true, thus, neither is true. This is assuming inter-dimensional travel is at all possible with boundless energy (as an infinite number of the infinite timelines would acquire). I tend to lean towards the possibility that it must be possible, with the amount of energy a multiple dyson sphere civilization could acquire, though I obviously don’t know this.

Somewhat related is my views on time travel. Since we have no evidence of people coming back in time, I find time travel either impossible as evidenced by lack of evidence, or I find the lack of evidence to mean evidence that humanity will die out before it discovers it. If humanity were to survive for millions of years more, think of how scientifically capable we would be by then? Surely, if it were at all possible, we'd discover how? It follows then, that over the next millions of years after discovering it, many many people would eventually make their way back to this era or eras past. There would likely be laws in place to never do so, but with so much time, they'd eventually be broken multiple times. I would assume that at least a few of those illegal trips would result in crazy happenings, well documented. We have a few very ancient artifacts that we can't fathom how ancient people made them, but that's not good enough for me. The 1900's through the 2000's will literally be looked at by people thousands of years from now as the most important time in our history - the rise of industry, computers and electronics. A prime destination for time travelers. I know it sounds like science fiction enough so to sound almost silly to contemplate, but think on this: scientists have already successfully teleported something. It was only an atom or two over only a few meters, if I remember correctly, but still. When you're talking about the entire future of the human race, much is possible provided we don't kill ourselves first.

If cosmic radiation background is intensely red shifted as we observe here on earth, can we run an algorithm to reverse the red shift caused by the distance the light traveled during the past 13.4 or whatever billion years to see what the big bang looked like in the visible spectrum (or reverse it to a time when the radiation appeared in the visible spectrum, rather)? It may not have too terribly much scientific merit, but I’d likely get goosebumps seeing the true big bang in it’s actual colors.

If E=Mc2 is correct, and the universe is truly expanding (both well supported and accepted theories), where does the universe get the energy to expand? General relativity says no energy can be created or destroyed. Literally nothing can happen without energy - including expansion of empty space, right? Where does the universe get the energy? Is it leeched somehow?

#science #stringtheory #emc2 #redshifted