Related - I was saying earlier today that the problem with idiots is that they are too stupid to know they are stupid. Thus they strut about overconfident in their "knowledge" (such that it is) and fearlessly go where intelligent people, recognizing their own limits, understanding unintended consequences and that there are a host of costs and benefits that must be assessed, are cautious and perhaps even too timid to rashly enter. While the intelligent person pauses and assesses deeply, the idiot dauntlessly hurries forth.