I love new technology especially when it comes to transportation, but as a people mover this thing seems to have unsolvable problems. You're trapped in a tin c

I love new technology especially when it comes to transportation, but as a people mover this thing seems to have unsolvable problems. You're trapped in a tin can in a vacuum tunnel 20 feet or 50 feet below the surface -- what if it stops? You can't get out. Obviously we put up with a similar predicament in air transportation, and for that matter train derailment and automobile collisions are a real and not uncommon risk of above-ground transportation systems. But Hyperloop has this inherent issue that doesn't have any obvious solution. For transporting goods, it sounds fantastic. Move tons of cargo from SF to LA in 30 minutes, or from D.C. to Boston in 40 minutes. If nothing else, it would be great for USPS and FedEx. If it at least partially relieves the interstates of the stress and damage caused by 18-wheelers, another point in its favor (sorry, drivers).