None of us is infallible; none of us is omniscient. The only way, as a species, we’ve been able to make progress—we’ve been able to discover how the world works, what works in creating a functioning and fair society—is that people try out ideas; other people point out what’s wrong with them; we keep the ideas that seem to be working; we try not to repeat our mistakes; and we blunder our way toward knowledge and progress. If you disable that cycle by punishing people for the content of their spee