He definitely seemed to have a chip on his shoulder with a lot of unnecessary backhanded comments, and many engineers do suffer from saying "no" too often, but

He definitely seemed to have a chip on his shoulder with a lot of unnecessary backhanded comments, and many engineers do suffer from saying "no" too often, but I do think he raised several points that are applicable to the Hyperloop. Until someone invents anti-gravity, g-forces and other traditional physics problems are going to be a factor. I've been in a sustained half g turn. It's not uncomfortable, but it's not exactly old person friendly, either (in simplistic terms, take half your body weight and imagine that much force pushing you laterally). You'll want bucket seats. And I did not know the Hyperloop would not actually go into LA proper. That's a significant difference to me. That last leg into LA is where a lot of the traffic trauma happens, the part I would most want to avoid. Ultimately both "sides" need to work with each other. The entrepreneur pushing the envelope, and the engineer making sure things are feasible.