There are also a ton of ~first mover advantages you can't benefit from, be they of untapped markets for demand or the exploitation of underpriced labor, capital

There are also a ton of ~first mover advantages you can't benefit from, be they of untapped markets for demand or the exploitation of underpriced labor, capital, or IP. If Sam started a new company he would not get as good a deal on hardware or labor, he would get much more scrutiny on his training sets, and he would have to compete against both OpenAI and its competitors.