Paul Graham wrote that AI-written emails felt like he was "being lied to." Bloomberg/Getty Images Paul Graham wrote that founders are emailing him in "hard-hitting journalistic style" — which he said is a clear tell for AI. The Y Combinator cofounder said he doesn't knowingly finish reading those emails, which feel "like being lied to." Tech leaders chimed in to support Graham. One said that writing with AI was "usually a bad idea." Dear founders: your emails read different. Is it AI? Paul Gra