The way I read the parent comment is "arrogant people expose their opinions" (which unavoidably exposes them to challenge) and "arrogant people have full confid

The way I read the parent comment is "arrogant people expose their opinions" (which unavoidably exposes them to challenge) and "arrogant people have full confidence they know exactly what to do" (but are actually unaware of the risk involved due to them being wrong). I share your final observation though.