What would happen to Bitcoin’s value if all countries banned crypto exchanges together ? Can it survive such an action ?
All countries can't ban Bitcoin at a spot. It's not like Bitcoin is a contraband asset that will call for international ban. It's a legal asset that is like every other asset but it's eve more special than other assets with international demands and low supply unlike there own traditional assets that are everywhere and are expensive. Bitcoin is that type of coin you will like to get and have this kind of feeling like you won a jackpot, it's not like Gold that you can see everywhere.
I don't know what tomorrow says but I can say it with a confidence that Bitcoin will remain assets that can't be banned by all countries. It may not be generally acceptable in the all countries but even the countries that has banned it will likely change about it tomorrow. Let's just watch and see, US are now in and out mode of acceptance, if this government doesn't approve the next will want to accept it fully to have the Bitcoin community support, one step at a time.