I think it cant happened but if it occur then definitely crypto will be down because it is digital currency and crypto needs to internet for transaction and that time world economy also face some problem.
The post is rwally long and mentioned many negative facts about bitcoin. This made me extremely sad but I still wanto hope for the best and believe that this condition will not sustain long and hope that the crypto market will take care of this facts and thus contribute in crypto development.
Such an biggy working on blockchain technology is a great news. This will increase the acceptibility of blockchain technology and people will understand that crypto is a modern day currency and all should accept it. This will be benficial for world economy and development.