this thread is really good, however im still not convinced there is a particular fundamental difference, monkeys have a very small form of technology in the tools they use for food, they bang rocks about to break into food and what not ( i know im being vague ), I dont know if this is something each chimp learns for himself or something each chimp learns from other chimps.... say if fire was an accident at first, was this a case of each human slowly learning a specific act ( firemaking ) or was it a skill that spread from human to human, after an initial accident??? Id guess at the latter...... in which case, I think its similar to how I presume chimps use of 'tools' has came about, one chimp happened to be gripping a rock while he was smashing a coconut, coconut broke, he and other chimps put 2 and 2 together and so they all started using tools and whatnot..... yknow????
I think one physical difference is that humans have opposing thumbs which allows us to be kinda nimble and gentle with our hands.
I think we are just animals who with a couple flukes ( fire and whatnot, the pretzel ) and some nimble hands managed to flourish, and from there evolved into a species with some "next level shit" communication and technology.
Errrr mr tea - yeah just read your post, yknow I think your right, our cave drawings may be what seperates us, our reflexivity to communicate through language/ code ways would be our advantage that means any fluke or occurance we learn from ( making fire, noticing displacement when we get in the tub etc..) would be preserved ready for the rest of our species to capitalise on and take advantage of.