How bad actually are hydrogen airships? At this point trying to make tiltrotors any safer is not working out, so airships could be better. Though, if you have a real airport, passenger jets are unbeatably safe.
Fair point! Probably should have left them off. Despite the rather famous failing, they've had a lot of utility, and the technology is still in use today. (I think there's at least one YCombinator startup using hydrogen airships.)
