I think the point is that we should try a lot of different approaches, as there may be good fits that aren't possible to do via electricity - ie is electro smel

I think the point is that we should try a lot of different approaches, as there may be good fits that aren't possible to do via electricity - ie is electro smelting iron > using hydrogen? Unsure we really know what that looks like at scale yet. Either way there's an unproven process step with lots of efficiency questions for plants at scale, and I'm impressed to see Japan seriously trying something totally different.