(I didn't want to reply, but given the follow-up...)
Since they are already intelligent, there's a road to incremental improvement. For hands, it's not even clearly possible, will take too long, and psychology will change anyway in the meantime, causing even greater value drift (which is already the greatest cost of breeding for intelligence).
Discuss things here if they don't deserve a post in Main or Discussion.
If a topic is worthy and receives much discussion, make a new thread for it.