. >> mark chandler, bbh.aid the other day that you would actually buy a bit coin. >> the value of bitcoin is a function of how many people accept it as currency. there will come a day once people stop accepting bitcoin. between now and that day, i think there is is a long way to go. >> robert shiler just the latest name to sound the alarm. we will hear from one strategist who is taking the other side of that argument. that's next plus the company that is paefing the way to use the internet on international flights is going global. >> involving the three product fires from tesla vehicles. tesla has responded with information and german regulators have deemed no further steps necessary. so tesla at least getting a clearance if you will from german transportation safety authorities. >> thanks. germany was the market where tesla faced very stiff competition. the likes of bmw actually gaining share there. i have made money in it. >> the dough losing ground today as we enter one of the best months of the year. bob,