From the other extreme, on a non-cosmological-scale:
10,000 years is 100 hundred-year lifespans back-to-back.
That’s not very long, especially when your own lifespan is a large fraction of a century. Certainly not long enough to explain much of what we see without holding that God made things, on a very large scale, to look like what they aren’t - to wit, I reject the notion that God lied.
The problem, of course, is that the age of the Universe (however it may have occurred) differs depending upon where you may be and what you’re doing.
I think.
Was Jesus born of a virgin?
When Mary was waddling around pregnant, did she look like a virgin?