Recent content by jefals

I don't imagine special relativity to include any alternate realities at all. Unless I define reality in a way that allows them. One of you folks (I think Norgatory) set me clear on that many posts ago.

In the words of Al Pacino..."I keep tryin to get out. They keep pulling me back in"! :) I think I mentioned multiverses many posts back when in regards to whether we could consider there are multiple realities. I was attempting to make a point that we could consider each universe a separate...

I would say that every time a caveman tried to outrun a bear, he noticed two things: The trees were moving towards him faster. And so was the bear. In any event, no matter how fast his non-relativistic motion within a time-zone, the sun would rise as it always had. Hey you guys answered my...

Ok, I'll stop. You guys are way ahead of me. I understand how it's seen as nonsensical to you. It isn't to me. I've enjoyed the discussion, and appreciate all your comments. Up till this one.

Well, you might agree that there could be multiple univerces, tho, right? And possibly I could travel back in time and prevent my parents from meeting in a separate universe? If you accept this possibility, could that define two separate realities? If so, then we have acknowledged the...

That is DEFINITELY an interesting way to look at it. To me, (and I KNOW you'll disagree), it's a little like saying they both agree that there is one reality. And in that one reality, they each exist in a separate reality.!

Thanks! Maybe I'll check it out

1. I'd never claim the sun is no more important than any other clock. 2. A blurred landscape. I was going to get to that -- if we ever finish up with this! :) But since you mentioned it -- in all the youtubes, PBS specials, episodes of Cosmos or whatever, when they depict a person speeding...

Thanks much, Nugatory. I've tried to simplify my experiment as follows: A. Abe will stay put in Sacramento. Velma will be microsized and zoom off, northbound, from the southern tip of Baja, at an acceleration sufficient to reach .995c just before reaching the California border. She then...

I guess I'm a little out of the science realm and into the philosophical when talking about double realities. As far back as you want to go, the passage of time as been associated with the earthly cycles. We needed to find a way to tell when to plant. When to reap. And we always had an idea...

Thanks everybody for adding your insights out here. Glad I finally found a place to discuss this stuff with folks that really know what they're talking about! I do have more questions. Just thinking of how to word them takes a lot out of me! :smile:

Probably having a little trouble verbalizing my conundrum with all this. But it seems these "speedy little buggers" - are traveling in two realities. Locally, they are in this measurable time-dilated reality. If they were thinking creatures, they would feel their time going by much slower than...

Oops! I see now. I had it backwards! (Perhaps the electrons in my brain are running a little slow)! Still -- the little dude is living in a world that seems out of whack. His spacetime is acting one way, yet his experience of sunrise seems to be part of a different reality. hmm...

10/1 meaning I'm aging 10 times faster than the time traveller. So I'm thinking now his clock in his spaceship would have to register 10 days for each sunrise he sees. Not sure about the Unruh effect, unless we're talking about centrifugal force. I know that factors into the passage of time...