Because you're an aerospace professional, I've always wanted to pick your brain on this subject.

As you already know, there are more than a few hypersonic aircraft concepts out there. There are so many, that it's a little confusing keeping track of which does what, and where it, or the other is going.

Some have become technology demonstrators and materials test platforms, but the one that (to me) seemed to hold the most promise, was/is Hypersoar

It's the one that repeatedly pops in and out of the atmosphere, skipping 280 miles a pop.

"On Paper" the benefits are huge, and while it would not make the best passenger experience, (unless you like roller coasters) it would be a game changer in terms of cargo, global strike, and even satellite launch.

Your thoughts?

(If I've asked you this before, (and I may have) please forgive)