Suspicious-Notice-98 t1_j29ubvu wrote on December 30, 2022 at 6:13 PM

Reply to comment by drainisbamaged in The universe is ~20% smaller for a 6ft person versus a 5ft person by hanauma_view

I believe I said you don't need to know the size of it. Let's say a house is 1000 square feet. It will be that size for everyone regardless of how big they are. Your may be able to fit more of one person in it than another, but that doesn't change the size of the house.

drainisbamaged t1_j29unak wrote on December 30, 2022 at 6:15 PM

Relative to Paul Wight, that house is much smaller than it is relative to Kevin Hart.

When it comes to the universe, relativity to the observer is immensely important. So much so they granted the idea the highest military rank possible when coining the term General Relativity.

Suspicious-Notice-98 t1_j29w630 wrote on December 30, 2022 at 6:25 PM

That's why it would need to be measured with a standardized tool. You can't take a 5 ft something and a 6 ft something, measure the universe with both and then say that since it takes less 6 ft things than 5 ft things than the universes size is smaller or bigger.

Yes the universe is expanding, but if you pick a point in time, you'd have to measure it with one object to determine it's size based on that object and then you'd be able to define it's size which then wouldn't be any different for the other objects on it. Just because one object perceives the size to be different, doesn't mean that it actually is.

drainisbamaged t1_j29xba1 wrote on December 30, 2022 at 6:32 PM

The OP speaks relatively while you're speaking absolutely. Maybe you've misunderstood what was said?

At that..you don't freeze frame the universe, that's not how the simulator works. This is same concept as the coastline paradox. It's not just about making everything stop while you grab a tape measurer

DontHitTurtles t1_j2cmmgr wrote on December 31, 2022 at 6:32 AM

All of this aside, the math is way off. If for the sake of argument we accept OP's claim that the universe is 1 foot smaller for the 6 foot person, we would then have to say 1 foot = 20 percent of the universe for the rest to be true. This is so far off that it is absurd. OP is wrongfully comparing the size difference between the two people (one person is 20 percent smaller than the other person) to come up with the 20 percent number instead of between each person and the universe.

drainisbamaged t1_j2cquiq wrote on December 31, 2022 at 7:21 AM

You're applying a ruler to relativity and infinity. Of course your math isn't working out, that was Einstein's point!