Given this trend, an ETF called IPAY might make sense to invest in. Or to invest in credit card companies. However, if you think the system is gonna go down, then going into cryptocurrencies, and then moving to a hardware wallet for at least some of your networth might be a good strategy. Keep your hardware wallet in a LEAD BOX in case there is an EMP attack. Or, better yet, buy lots and lots of solar panels and stock pile them in a metal shed.