Science
04 Jun 23
06 Jun 23
@divegeester saidYup, YouTube is a belly full.
This is what happens and it would have an impact.
For example if person A was travelling at close to light speed for one month relative to and away from person B who was stationary, and then person A returned at the same speed for another month. Then person A would age hardly at all, while person B would have aged 2 months. This is true for all matter.
Also if a p ...[text shortened]... ough then they would look into the night sky and see nothing at all.
Youtube is a hellava thing.
These are interesting, thought experiments, but I do not believe they have any bearing on either the age of the universe, or on our calculation of the age of the universe. These thought experiments apply not to the passage of time throughout the entire universe, but only to the experience of time for an observer locally, or for some observer relative to some traveler locally . calculations of the age of the universe are based on measurements of the speed at which galaxies are receding, not only from us, but also from each other. Even if some galaxy traveling at near light speed away from us were to reverse course and travel towards us at near lightspeed, these relativistic effects regarding the experience of time would apply only to sentient beings within that galaxy, not to the expansion of the entire universe.
06 Jun 23
@moonbus saidThey aren’t “thought experiments” they are scenarios based on the physics of Einstein’s General Relativity.
Yup, YouTube is a belly full.
These are interesting, thought experiments, but I do not believe they have any bearing on either the age of the universe, or on our calculation of the age of the universe. These thought experiments apply not to the passage of time throughout the entire universe, but only to the experience of time for an observer locally, or for some observer ...[text shortened]... would apply only to sentient beings within that galaxy, not to the expansion of the entire universe.
06 Jun 23
@moonbus saidNo, one of the “evil twins” from The Shinning.
@divegeester
Changed your avatar again I see. Alice in Wonderland this time? 😀
Gravedigger will explain; he’s “Jack Terrence” location “Overlook Hotel”
06 Jun 23
@divegeester saidI have not seen that film. Should I?
No, one of the “evil twins” from The Shinning.
Gravedigger will explain; he’s “Jack Terrence” location “Overlook Hotel”
06 Jun 23
@divegeester saidWhat's the difference between a thought experiment and a scenario?
They aren’t “thought experiments” they are scenarios based on the physics of Einstein’s General Relativity.
06 Jun 23
@metal-brain saidAh sorry, saw my name included in the reply and assumed it was to me.
My post was in reply to moonbus
06 Jun 23
@divegeester saidIt’s Jack Nicholson, isn’t it? I like some of his films, but I have a suspicion he’s not really acting; just being Jack.
I don’t know your taste in films so couldn’t say tbh.