Elon Musk is back in the loop. Four years after encouraging anyone and everyone to try making his crazy hyperloop idea work, the Silicon Valley titan has decided he's not too busy to do it himself ...

It's a bird; it's a plane; it's a Tic-Tac-shaped pod that travels at 670 mph. Virgin wants you to know (or at least think that you know) that its system of futuristic pill-shaped transportation pods, ...