Buckle Up For "Affordable" Supersonic Travel

Faster transportation design has been in the headlines recently, as Elon Musk unveiled his unsurprisingly not-a-joke Boring Company and stoked more Hyperloop fervor. But where this kind of futuristic tech might take another decade-plus to deliver, some plucky startups are seeing money in earlier engineering. As of this March, Boom Technology has landed an additional $33 million to build and test a supersonic jet for the mega wealthy set. Supersonic, a la the retired Concorde and '90s...