Fair points! I tried to clarify in my edit, but I was mostly speaking from the perspective of grid decarbonization, as opposed to more niche (to me) applications like space probes, because that is what my personal biases are towards. It seems like a few more percentage points of efficiency at the same cost/space (so ignoring something like perk pv) doesn’t meaningfully move the needle on decarbonization efforts any more and that other challenges dominate (grid infra, batteries, etc). And I actually mean “solved” in a celebratory manner - it’s awesome that we are at this point! But yes, I was totally overlooking use cases besides residential and grid-scale PV.