One thing I'd say is the volatility. Imagine Bitcoin as a global payment mechanism for the world. It's capped sure(21m) but volatile. You're buying something in

One thing I'd say is the volatility. Imagine Bitcoin as a global payment mechanism for the world. It's capped sure(21m) but volatile. You're buying something in El Salvador and someone/someones in the world make the price crash. By the time you reach for your phone in pocket to make the payment (say) and begin to pay, your item now costs double of what it should have costed. How does that work?