LuisDantas, I often wonder whether I write in English or not. I cannot see how my comments are not understandable. I am not saying that you cannot understand plain English, rather it seems quite simple to me to read back what I have written. I get this quite a bit. Is it that there is little direct attention to detail or opinion, being that the opinion is subtle or is it that I am either opposing or agreeing with both arguements that I do not seem to express myself clearly.
Perhaps it happens so often because you are making a lot of assumptions that we do not share. I tried to point a few in my previous post, but apparently you don't want to know about that.
Anyway, if you are saying human has been on the Earth for some 250,000 years, my point is that we have nothing to show it.
Of course we do. We've survived to this day, learned tool use, created civilization and culture. In what sense is that not enough for you?
Therefore I claim that human has been around a lot less time than that. By biological definition, especially of the brain, wouldn't you say that 243,000 years was spent doing SFA.
If you mean "Success For All" and is saying that as a supposedly smart*** way of implying that we ought to have done more during that time, well, I can only say that it is foolish to ignore pretty much all archeological evidence out of pride.
That, and also that there is such a thing as a critical mass where cultural developments are concerned. For nearly all of its existence the human species was indeed not all that different from chimpanzes and bonobos. When an efficient spoken language, agriculture and other revolutionary discoveries came, they had impressive (and fast) effect indeed.
Would you concur that, if evolution is the path we took,
Biologically speaking, evolution is the path that all living species took.
that humans as we are, are not of the time frame you have mentioned but something a little closer to say 7-10,000 years in existence. My guess it is less but I can settle with that.
No, I would definitely not concur with that at all. This timeframe you propose is hurried enough for human civilization, and completely delusional for human species.