Marc Andreessen explains why the manager class might disappear in the AI era: "I've always viewed my entire life as—we're raging against the dying of the light. We're constantly trying to fight off managerialism swamping everything and everything getting boring, gray, dumb, and old." "The challenge is going to be for the innovators to figure out how to leverage AI to actually do this." "The other challenge is going to be for the incumbents that are managerial to figure out—what does that…