the hyper loop is the idea of elon musk. rachel crane reports. >> a special case of cities which have a lot of travel between them below about 500 miles of distance where the hyperloop would be useful. it is a special case solution. once the distances get long, then the amount of time an aircraft takes to ascend and land. >> we dream about moving place to place in a blink of an eye. that is the dream of the hyperloop. >> what is the hyperloop? >> it is similar to an airplane on high altitude. the low pressure doesn't involve a lot of resistance. >> this concept has been around