He says, Sisyphus is the perfect model for us, since he has no illusions about his pointless situation and yet revolts against the circumstances. With every descent of the rock he makes a conscious decision to give it another go. He keeps pushing that rock and recognises that this is what his existence is all about: to be truly alive, to keep pushing.
But the scarce factor isn’t capital equipment. What is expensive is the intangible capital that’s needed to overhaul production in ways that use cheap computing power to eliminate lots of jobs. It is complicated to figure out how to get these systems working and operating in a way that generates profits. While labour is cheap, firms face little pressure to make those massive investments in intangible capital in order to automate key processes.