Not sure how many DU's watch the show :Alex Ruins Everything" but I saw an episode recently on air travel. Not a pretty picture, especially after deregulation of the airlines by the FAA with a push from Ralph Nader. It lead to a demise of regional airports and an increase in hubs as well as a reduction in the number of airlines. Surprise, the free market does not always work as many costs are not factored into the equation properly. Use of dirigibles (much safer today) could be an answer to medium distance travel and have a much lower cost in terms of infrastructure investment needed. I tink I might enjoy such a trip.