How could 13-14 million usd worth of bitcoin be invested in such a way that it will grow exponentially like 10x over gradually in a couple of years in the u.s.? Would this be feasibly possible or not? How could this much bitcoin be put to work? What kind of investsments will allow this?
If you want to achieve a X10 growth in bitcoin investment, you have to wait over few decades because the growth rate of bitcoin may not be that massive. I don't even support putting such a high target for bitcoin at this stage to avoid setting unrealistic targets that might lead to some form of regrets. Another problem with setting this kind of big target is that when you realized it is not feasible, you will be tempted to go for cryptocurrencies you feel can pump that much thereby exposing your money to risk that can make them evaporate. My recommendation is to either buy bitcoin and hold using the DCA method or lump sum buy. This is the best you can do for now.