Oh, that's weird. They missed all the other noble metals besides silver too. No platinum, rhodium... those things have really really interesting orbital structures, I'm surprised they're worth leaving out of something so tricky when it might be important. Strange.
The only thing I can think of is that they did it and know that those noble metals don't work very well, and so they're getting everyone else to follow a wild goose chase down a very expensive rabbit hole while they already have a better approach.
... but the tech doesn't look that developed. Very strange.
It could be that they found something incredible by chance and they’re at the limits of their personal capability to further understand and refine. The fact that they’ve known about this for over 20 years suggests maybe. It’s not a bad thing if they are, they’ve already taken one of the biggest leaps. New teams with fresh eyes and varied backgrounds will look at the problem space and undoubtedly see room for refinement.
Agreed, that's what makes the omission odd. Normally you'd expect them to list any candidate that they have any possible reason to think might be relevant, especially if they aren't entirely sure what is going on.
Is that clearer what I mean? I think the only reason to exclude those things is if they were super confident they weren't a good idea for some reason we don't know. Or they just... forgot? That would just be very surprising.
The only thing I can think of is that they did it and know that those noble metals don't work very well, and so they're getting everyone else to follow a wild goose chase down a very expensive rabbit hole while they already have a better approach.
... but the tech doesn't look that developed. Very strange.