If you prefer, you can read that sentence as stop using cryptocurrency based money and use USD, gold, or whatever instead. Or if you really want electric money

If you prefer, you can read that sentence as stop using cryptocurrency based money and use USD, gold, or whatever instead. Or if you really want electric money, use Chaum style digicash instead. It long predates bitcoin, but basically has all the benefits except technically having a central authority except you dont even have to trust the central authority.