japan's and korea's hydrogen fuel cell infrastructure for cars is already in place, ahead of north america...granted north america is HUGE but

Sounds promising

Hydrogen is not the fuel of the future, it’s far too dangerous to manage. If you have ever seen a hydrogen trailer, it not a tank, but instead a trailer with 12 - 15 smalle high pressure cylinders. Hydrogen does
Not burn, it explodes.

It's an interesting idea.
But I'm pretty sure exactly the same thing was being touted from the creation of gasoline; petrol; diesel; ev"s etc.

And infrastructure is going to be the biggest issue