Steve I don't know what gets into you, it seems to give you a kick to be unpleasant to other posters. 
You misread my post, I suggested apes might be able to achieve in the future what humans are capable of doing today. I didn't say humans might be unique in the future.
However, as Steve originally stated, the extreme period of evolutionary stasis exhibited by the great apes suggests that this is unlikely to happen. It may be, as I suggested earlier, that the way their neural pathways have been laid down prevents this kind of 'evolutionary leap', and they have been backed into a dead-end, and may soon become extinct (as we all may, if humanity is not careful!) I don't know what we can judge from the fossil record about such matters, but it does seem that there are numerous examples of creatures which have changed little over millennia (with even some contemporary surviving genera, such as the crocodile) - while all around them other life-forms show evidence of rapid evolutionary change.
There again, with the matter of comparison of chimps, gorillas and humans, we are dealing with a two-fold phenomenon: both biological
and cultural evolution, which complicates the question.
Do any boffins here know of any ancient species which appear to have remained in stasis for millennia, and then suddenly appear to have undergone rapid evolutionary change, and had somewhat different descendants which appeared in a relatively short time (in terms of the overall existence of life on earth)?