It's better to have no cofounder than to have a bad cofounder, but it's still bad to be a solo founder.
Sam AltmanLater, you should learn to hire fast and scale up the company, but in the early days the goal should be not to hire. Not to hire.
Sam AltmanSo it's worth some real up front time to think through the long term value and the defensibility of the business.
Sam Altman