The real moat is users' dependence on you.
We're told, from many sources, that any onecan achieve anything. We've done away with the caste system, we are now in a system where anyone can rise to any position they please. And it's a beautiful idea. Along with that is a kind of spirit of equality; we're all basically equal. There are no strictly defined hierarchies. There is one really big problem with this, and that problem is envy.
由于缺乏事实而产生的错误,远比基于真实数据但推理不当所产生的错误更多且更持久。