Franklyn: I'd like to send this parcel to cheapest alli tablets uk Elon, I’m a fan and not trying to be a wet blanket; I just respect the physics and political realities. Hyperloop is a grand idea, the kind of thinking and bravado this country has been sorely without for far too long. You say you might build a demonstrator and I hope you do. I’m in line to be one of the first to ride when it’s good to go (book me on the Mars trip as well). But to say this exercise will cost “only” $6 billion to build and $20 one way to ride I think ignores political and market obstacles, especially in the Golden State.