Open-endedness: The last grand challenge (2017)
oreilly.com
oreilly.com
Edit: Adding relevant phrases, oddly absent from the O'Reilly article.
The Equation for Intelligence F = T ∇ Sτ
"Intelligence is a physical process that resists future confinement."
The only reason evolution didn't converge at some point to some equilibrium ecosystem is that the environment constantly shifts (sum activity, meteor strikes, volcanic erruptions).
If you want a GA to produce infinite diversity, have it run for insanely long times, insanely parallel, and constantly change it's evaluation function.