IMHO bitcoin has nothing to do with the world economy or the economy of a nation..

Bitcoin is a peer to peer electronic cash,it has no connection whatsoever with the government,if there is a global economic crash, then the only victims would be the FIAT currencies of our various nations

Bitcoin is at an individual level, that's why it's called a decentralized platform,free from the government and it's regulatory body and any economic meltdown whatsoever,it only affects individuals directly or the mass of users in general

The system can only be affected based on the demand and supply of the currency
Probably if there is 0 demand for the bitcoin,then that could signal the end of the currency(which is not going to happen)

Bitcoin would thrive even in an economic crash or meltdown