One can also note the relative time periods over the course of evolution and what amount was spent acquiring different skills and competence levels.
	A vast proportion of time was from single cell to fish and insects (about 2.5 billion years)
	Another billion or so to evolve to mammals..lots of effort to get some basic stuff so that it was right and a good foundation for more adaptation
	The great apes only evolved starting 18 million years ago!
	Humans around 1.5 million…etc
	Note the incremental nature of sophistication and probable dependencies.