Evolution occurs at the species level.
It isn't constant either, once an adaptation works evolution
doesn't continue if the environment is stable, maybe a tweak
here or there. Life, including humanity, is just the local landscape expressing itself. Like how a cloud is the result of a process, soare we. What is new and strange and wonderful about humans is that we, as a species, now adapt faster than the environment changes.
We can race far ahead using our most human attribute, imagination and figure out ways to adapt before the universe forces us to. Tools are one way.
Other hominids evolved along with us, the environment was producing them a million years ago, yet only we succeeded. When a rock became a tool, an extension of our body produced by a mind, the Singularity began. We are /inside/ it right now.
For very long stretches those simplest of tools was good
enough. There weren't a lot of us and the evolution of tools