Presume, firstly that were to have evolved in the same way, and that none of the genus were to wipe each other out. If Homo antecessor, homo neanderthalus, homo erectus, H. cepranensis, H. ergaster, H. floresiensis, H. gautengensis, H. habilis, H. heidelbergensis, H. rhodesiensis and H. rudolfensis (or any of them, of course), were to still be existant, what would they be like today?
Of course it's a lot of guess work, but if anybody can make educated guesses that would be cool (: I just think it's intriguing to consider this alternative timeline in which, granted, Sapiens are the most intelligent - yet there are other species of our genus. How would society function? And how would the individual species act and behave and look?
Should I still go?