Silicon is like $3/kg (and that’s the higher price, it’s actually cheaper than that outside USA). I’m not sure if we could sustain the same level of manufacturing using bismuth without side effects. One of the best things about silicon is that it’s the second most abundant element in Earth’s lithosphere (the first being oxygen)… I don’t think the “line must go up” attitude around pushing for Moore’s law is a worthy effort. I’d rather we pushed for software to be more efficient, I don’t feel my PC is significantly faster than it was 10 years ago, despite its Hz having doubled.
I could understand using this for specialized applications, but I’m not convinced it should be something that should be made as widespread as silicon tech, so I don’t think this should really be seen as a replacement for it.
Yes, I understand that more mining could be done, but what I was saying is that I don’t think it could be sustained to the level of silicon. Bismuth is a rare mineral, and 100 times more expensive than silicon.
China is the world’s largest market for semiconductors (50% of the chips in the world are traded there), if they want to use locally produced bismuth chips they would only be able to tackle a very small fraction of that. Either they are only used in special applications (like some particular specialized hardware at smaller scale) or it would be impossible, the Earth does not have enough resources to produce bismuth chips at the same scale as silicon. So I’m not sure if it could work as serious competition to silicon.
But we’ll see, maybe I’m wrong.