Does it? It seems like it would still be more efficient to just use swappable battery packs. IIRC hydrogen is either made by cracking natural gas (which puts ou

Does it? It seems like it would still be more efficient to just use swappable battery packs. IIRC hydrogen is either made by cracking natural gas (which puts out carbon), or it's made extremely inefficiently via electrolysis (in which case you waste much more electricity than you would by charging batteries). The former is more economical than the latter, but doesn't seem to have much in the way of environmental benefits AFAICT vs. just using the nat gas directly.