Interesting that Charles Alexander's writeup was said by Musk to be the most similar, when the ideas were fairly dissimilar by the end.[1] http://charlesalexan

Interesting that Charles Alexander's writeup was said by Musk to be the most similar, when the ideas were fairly dissimilar by the end.[1] http://charlesalexander2013.wordpress.com/2013/07/18/hyperloop-riding-sounds-density-peak-to-exploit-the-drag-equation/ http://charlesalexander2013.wordpress.com/2013/07/18/hyperlo...