[narby]

So does the assertion that it took millions of years for the Earth to take it's current form hold up in the arena of "provability?" How so?

Hiking the Grand Canyon is proof enough for any sentient being that the Earth is millions of years old.

I'm not talking about the carving of the canyon itself, which did take at least as long as the time for the local uplift to occur. Because if it had happened in a single mythical "flood", the river would have taken a completly different course along lower terrain.

But I mean the forming of the layers of rock itself. Walking all day in order to get to the bottom, passing layer upon layer of rock of several different types is obvious proof of a considerable length of time.

And then we get into drill cores going down miles.......

[Fester Chugabrew]

Hiking the Grand Canyon is proof enough for any sentient being that the Earth is millions of years old.

Not without making assumptions about unobserved, and unobservable phenomena. You may see it as it is, but you cannot see beyond your own experience, let alone millions of years ago. Any sentient being can be a storyteller.