true that humans have their own ways develop themselves further, but not by normal evolution...
ok I take that back, humans are still evolving just as animals, but as said, animals evolve physically and humans evolve mentually
the key here is, using the mental evolution we make we create other types of physical evolutions that our bodys were not supposed to make by nature.

but to only have singularity by machines, I can see other options as well you know