My son was very quick at wanting to eat on his own, drink on his own from a real cup, and walked months ahead of his peers, yet about the time he finished getting these down he has stopped wanting to learn things. He stacks blocks, puts balls in hoops, and is attempting to eat with a fork. But what concerns me is that he is not talking at all, no single word. His ped mentioned it but said he wasn't concerned at this point. My son also does not know any body parts and has no interest in learning them. It seems that anything that doesn't "get him somewhere" he doesn't care to learn... Any ideas on why or things I can do to make him more interested? We've tried songs, reading, playing, learning toys... Any ideas?