Re: Tool School
Interesting idea, Tom...
On the other hand, I want to know, "Why is (in this article, anyway) continuity of posession considered a criterion of intelligence?" Seems to be equally likely H. erectus had brains enough to realize [a] tools can be made on the spot, as needed, from stones within reach [b] carrying a permanent toolkit could be a problem, especially if your throwing hand is already carrying a spear and you want to keep your other hand free for foraging - and maybe communicating.
Gripping hand... oh, oops, this isn't Mote Prime, is it.