Physics, Astronomy & Cosmology / Re: How would it be if I stretched my arms out in a metre wide Universe ?« on: 02/08/2021 20:40:38 »
So, next Tuesday I'm planning to go back in history to when the Universe was about one metre old.The universe doesn't have a known size now, so couldn't have in the past either since it is impossible to stretch a finite number into an infinite one. So hypersphere aside (Kryptid covered that), let's suppose that we consider a time when what is the visible universe today was only a meter wide. And never mind the violence going on. No scorched wool.
So I think that if you stretched your arms out, the universe would be an awful lot larger by the time you got the hooves out there. Do sheep have arms?? If the arms were already out there, they'd be immediately yanked away by their own inertia.
will i be able to knowing that my stretched out limbs will be larger than the universe ?Yes, because the universe will grow in size far faster than you could get there, just like if you had 200 BLY arms today, but all curled up inside our 92 BLY across visible universe, you'd have no trouble stretching those arms out to their full length and still seeing them when they're all the way out.
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