Those are all engineering challenges that are broadly constrained by money. I was pointing out that it's pretty common that those types of problems get solved when there's a will.
the tide is turning, there's active research into everything you've listed. I'd bet on these problems getting solved.
> engineering challenges that are broadly constrained by money
You’re comparing semiconductor manufacturing, a domain so concentrated one firm (ASML) produces the world’s cutting-edge instrumentation, and so quick-moving our modern paradigms for growth (Moore’s law to venture capital) emerge from it, to building an international piping and shipping system for a novel fuel that speculatively competes with batteries. Nobody is asking if, given infinite time and resources, these problems could be solved. It’s whether the solution would be competitive with what we have. Unfortunately, this blind optimism is baseline for I’ve seen for hydrogen.
Not all problems are solvable. I don't know enough about physics/chemistry to know if the problem is solvable, but I do know there are other unsolvable problems. (faster than light travel is a common one that people think more engineering can solve)
I'm sure people are working on the problem, but the laws of physics limit them.
What does EUV lithography have to do with hydrogen’s generation expense, embrittlement of metals, flammability and lack of infrastructure?