I think main difference is Charles thought it with his brain, whereas I felt it with my gut. No, jokes aside, the reason I wrote this up is that I wasn't entir

I think main difference is Charles thought it with his brain, whereas I felt it with my gut. No, jokes aside, the reason I wrote this up is that I wasn't entirely convinced of the exact physics laid out in Charles' post (I think e.g. Daniele Foresti et al [1] liked from my post may have more interesting model). Also, Charles seemed to assume that the wave would be there only to reduce drag, not to propel the capsule/car. That doesn't sound like Musk to me. But most importantly I think I bring to the table a careful poetic analysis of the Hyperloop. My work in this case is not in physics (where I actually do have my training), but in literature. 1. http://www.pnas.org/content/early/2013/07/10/1301860110 http://www.pnas.org/content/early/2013/07/10/1301860110