Why did you leave OpenAI to start TypeSafe even though you thought a competitor must already be working on this?

When I first thought of this direction, I assumed that it was so obviously correct that Anthropic or someone else must already be pursuing it. I was wrong. I talked to other companies and figured out that starting a startup would be faster than convincing an existing lab to change direction. So we did it. I thought the whole project would take a week. I was unbelievably wrong and I apologize to everyone at OpenAI who I thought I was about to show up. But the reason I could not walk away is that if an AI winter happened and I had not done every possible thing I could to prevent it, I would have considered myself personally responsible, both for what RLHF did to the gap between AI promise and reality, and for not going all in on the direction I believed was where value was actually going to be created.