1) Biological evolution was limited in part since the brain needs to fit into 0.0013 cubic meters and use a maximum of 10-20W. Until recently, for natural selec

1) Biological evolution was limited in part since the brain needs to fit into 0.0013 cubic meters and use a maximum of 10-20W. Until recently, for natural selection, keeping within those constraints was much more important than incremental extra intelligence. 2) Evolution is also incremental in a way engineering doesn't need to be. 3) One could argue we're in the middle of the (biological) singularity already. It just depends on timescales we look at. As life, we've developed more technology in the past 200 years than than in the previous 3B years. Interpolation works better than extrapolation. I don't really think we know what will happen or where we're going. The Bible, Quoran, or Vedas are as good guideposts as our own extrapolations. It's a discussion we should be having, but the levels of confidence expressed in predictions, constraints, or dynamics are unrealistic.