In biology, learning is something that, through the filter of intergenerational selection, gets imprinted at the cellular level-skin in the game, I insist, is more filter than deterrence. Evolution can only happen if risk of extinction is present.
So there is this other instance where filtering plays a role: fools of randomness are purged by reality so they stop harming others. Recall that it is at the foundation of evolution that systems get smart by elimination.
There is another point: we may not know beforehand if an action is foolish-but reality knows.
Taleb beautifully brings us full circle back to FBR.
As our minds have evolved far more slowly than the complexity of our world, the only way for true learning regarding the nature of randomness to take place is not at the individual level, but at the system level.