Technology

Well it doesn't matter what I think. I'm not talking from the point of view of arrogance here.

In theory, it's a simple thing, you get one of various fancy metals like mercury or tin to get energized, and it will emit EUV. Can't do it cold, that wouldn't work. You can also just do a discharge between electrodes at very high voltage or current and it will also generate EUV. But that's not the only requirement. You also must make it from a point-like source somehow.

There are lots of ways to heat an atom but only few where that atom will emit EUV. And everything absorbs EUV strongly so can you make a laser? Nope. In a laser, the photons must remain alive enough to accumulate in the resonator and output when there are enough bounces. Each bounce out of thousands or millions will just absorb the photon. So that's not the way. And you'll have to think your way thru the problem like that until you manage to imagine a way that might actually work. Then you prototype it, test it, fail it, a thousand times. That takes years and billions of dollars. So my opinion is that it will take anyone a decade or more to reach just prototype phase. And it will take another 10 to have something viable. But I don't want to argue so I'm just going to block you 😆😂.