Artificial intelligenceBreakthroughChatGPTCompetitionEntrepreneurshipImpossibleinnovationOpenAISam AltmanTransformationUnconventionalVisionY Combinator샘 알트만 8 Jan 2026 Sam Altman - I think it's often easier to do the things that everyone else thinks is impossible. "I think it's often easier to do the things that everyone else thinks is impossible."…