More than likely yes, it will be debit cards or similar while the "rainbow" physical currency comes out. If the USD crashes, there are only a few days before total chaos and nobody wants it, so they need to issue something new to stabilize the system quickly.
More than likely yes, it will be debit cards or similar while the "rainbow" physical currency comes out. If the USD crashes, there are only a few days before total chaos and nobody wants it, so they need to issue something new to stabilize the system quickly.