Here, I see the problem with your logic. > The price of rhenium fluctuates wildly and a few years ago there was a maximum at $10 per gram. You lost sight of t

Here, I see the problem with your logic. > The price of rhenium fluctuates wildly and a few years ago there was a maximum at $10 per gram. You lost sight of the simple fact I mentioned, you only need a very small amount of it and you add it to a CPU that costs hundreds of dollars already. So the impact on the cost of the CPU would be negligible. Even at the highest cost of rhenium you have mentioned, even if you needed a full gram of it (which I don't believe, this is going to be more like milligrams or even micrograms), you still only change the cost of the CPU slightly, at most. This before you account for inevitable improvements in obtaining the Rhenium itself.