Mark Zuckerberg is, of course, correct. So is Mark Andreessen. Some programmers and programming teams are, indeed, 100X more productive than their more typically talented counterparts. Almost everybody who’s seriously worked with serious coders (I have) would acknowledge this. What’s more, Mark Zuckerberg and Mark Andreessen — no mean coders themselves — deserve the benefit of the investment doubt. They have a sophisticated sense and sensibility about the talent they’re purchasing at a premium.