Bitcoin is not weak. It's a technology that thrives on attack, "Tucker said. "It was smeary, but it only made it stronger and better. This is why critics lose face constantly, and find many reasons not to admit it. "
Governments can slow down the process of accepting virtual money, by controlling and adjusting the exchange floor. Another method is through taxation. The blockchain itself can not be controlled but the national institutions surrounding it can.

(*) Jeffrey Tucker, a prominent economist and founder of the Foundation of Economic Education (FEE)