And that sand takes a very, very long time with lots of big brains to figure out how to manipulate at the nanometer level in order to give you a "beep boop"
It's not like Intel could decide tomorrow to spin up a fab and immediately make NVIDIA and TSMC irrelevant. They're the next closest thing given they make chips, have GPU technology, and also foundry experience and it's still multiple years of effort if they chose that direction.
Your statement is a lot like saying "poker has predictable odds" and yet there is still a vast ocean of poker players.
Anyone can make a cotton gin.. Industrialization of an industry basically centralizes its profits on a relatively small number of winners who have some advantage of lead time on some important factors as it becomes not worthwhile for the vast majority of participants from when it required more of the population.
