How to Define Intelligence in the Paleolithic Era?

We're making a big deal about the attempts to define intelligence. You can't really test for something if you don't understand it. That's one of the problems with ghost hunting. If there's no way to measure a phenomenon and people have tried, then hw, what are you hunting for exactly? The s a t comes to you courtesy of the same guy who wrote those tests, or the army, or world war one. And we're not saying they're all flimflam artists. We're just saying it's a really difficult problem, and it bears scrutiny.