human
Want to set up shop, Skipper?
gpt
All right, if you think it will do any good.
human
You never can tell. Excavation probably won't be much use. These things are on a raised rock foundation, swept clean by the wind. And you can see that the rock itself is native-- he indicated the ledge beneath their feet--
gpt
How long?
human
I wouldn't like to say off-hand.
gpt
Make a rough estimate.
human
Five thousand years? Ten thousand? I don't know.
gpt
Look at the striations. You can tell from that alone. It would take even a brisk Earth wind _at least_ several thousand years to cut that deep, and the wind here has only a fraction of that force.