Mr_SkeletaI t1_j1h7u84 wrote on December 24, 2022 at 9:02 AM

Reply to comment by Shadowkiller00 in Did you know it will still take 46 billion years to cross the universe at the speed of light? 65 mph = 4.8 * 10^17 years! by NotAndroid545

I’m a bit confused. You state that this is only the size of the observable universe, but also that we know the age of the universe. How could the universe possibly be larger if we know it’s age and rate of expansion. Wouldn’t we just know it’s size then?

Shadowkiller00 t1_j1h8ul0 wrote on December 24, 2022 at 9:17 AM

I don't have a good answer for you. I'm not actually a space guru. I've picked up a lot of stuff over the years and I general know what I'm talking about, but I don't have the deep knowledge that was required to figure this stuff out in the first place.

What I can say is that we can calculate a lot more than we can observe. So, logically, you are right. But I honestly have no idea of we can calculate the size we think it is. I also can say that, even if we could calculate it, it's effectively a meaningless value because we could never verify it.