Elon Musk believes his companies should be “absolutely hardcore about headcount and cost reduction.” Bending Spoons Co-Founder Matteo Danieli says reducing headcount often actually makes companies operate better: “An external observer that's not privy to what happens here will see that the number of people working on a product decreases as a consequence of us taking over, and reasonably argue that we don't care about making the product better.” “This hinges on the fact that there must be a…