Egoism in its narrowest sense is a tautology, not a tactic. Adolescents of all ages who triumphantly trumpet that "everyone is selfish," as if they'd made a factual discovery about the world, only show that they literally don't know what they're talking about. Practical egoism must be something more, it must tell the egoist something useful about himself and other selves which will make a difference in his life (and, as it happens, theirs). My want, needs, desires, whims - call them what you will - extend the ego, which is my-self purposively acting, out where the other selves await me. If I deal with them, as the economists say, "at arm's length," I can't get as close as I need to for so much of what I want. At any rate, no "spook," no ideology is going to get in my way. Do you have ideas, or do ideas have you?