According to @mcuban, AI’s greatest weakness is its inability to say "I don’t know," and he adds that humans retain an edge by admitting uncertainty, posted on Sep 9, 2025, source: @mcuban. For traders in AI equities and AI-linked crypto, this underscores concrete controls such as human-in-the-loop validation, explicit uncertainty thresholds, and avoiding blind reliance on LLM-generated signals, source: @mcuban.