AI researcher Sauers on why nobody in AI has figured out how to reliably give a model a specific personality: "OpenAI had tried to make very rich and interesting personalities. They tried explicitly. Presumably they're very well-funded to do this." "Anthropic said they have no idea what the personality's gonna be. They only learn what the model is like after training. So they've always said, we don't know why Claude is like this." "Poolside's new model is weirdly joyful in my experience, and…