Haven't we been hearing this for years? I find comments like that uninteresting and unhelpful, but this entire article is about unpublished breakthroughs in ef

Haven't we been hearing this for years? I find comments like that uninteresting and unhelpful, but this entire article is about unpublished breakthroughs in efficiency. We still have huge steps before commercialization, and it's still unclear to me whether silicon-perovskite panels maintain their efficiency long enough for widespread use.