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Because our Universe is neither infinitely old (is about ~14 thousand millions years old) nor infinitely large (is about 90 thousand millions ly in diameter) Y
by daxorid 10y ago
Because our Universe is neither infinitely old (is about ~14 thousand millions years old) nor infinitely large (is about 90 thousand millions ly in diameter)
You have just suggested the universe expands at roughly 6c, no?
- lucozade 10y agoThat's correct. Current estimates are that spacetime at the edge of the observable universe is expanding at about 6c.
- jbmorgado 10y agoIn the early moments after the big bang, the metric of the universe expanded much faster than the speed of light increasing it's size way above the c x t linearity. This doesn't violate relativity though, since what is expanding is the length of the spacial dimensions, but the particles between themselves are moving slower than the speed of light (imagine 2 points in the surface of a balloon when the ballon is inflating).
- Analog24 10y agoThe acceleration of the Universe has not been constant. In the very early Universe there was a period called Inflation where the speed of expansion was much much much faster than the speed of light.