"What’s the Point If We Can’t Have Fun?" by David Graeber in the Baffler is an interesting philosophical sketch of how play might be one of the fundamental forces of the universe. I like that idea!
The neo-Darwinian conception that all existence is rational actors trying to out-compete each other creates blind spots when it comes to things like pleasure, altruism and play. Graeber's essay is a quick dip into some deep waters, but enjoyable all the same. Enjoyable for me, anyway, because it points to the universe-as-mind principle at base of mythic archetypes from a scientific perspective.
"If an electron is acting freely—if it, as Richard Feynman is supposed to have said, “does anything it likes”—it can only be acting freely as an end in itself. Which would mean that at the very foundations of physical reality, we encounter freedom for its own sake—which also means we encounter the most rudimentary form of play."