“How do you make a small fortune in aviation?.. start with a large one”.
Like a few others, my bet is the tech challenge is a…challenge, but it pales in comparison to getting any significant fraction of the population interested in actually sitting in one, much less repeating the experience after a windy, stormy hop to a “lily pad”…and if that doesn’t end well for the wealthy early adopters on board and/or innocent bystanders below, the lawyers, insurance industry, media, legislators, regulators and your Aunt Mabel will all weigh in to change whatever assumptions facilitated the initial “success”. Perhaps we’ll get a preview if (when?) one of the space tourist rides goes off the rails…
For routine proof of market size…what look do you get from the majority of your friends/family when you offer a flight?