The only thing we need to worry about here is what government does in reaction to the success of this technology. They will get desperate and that will create violence. The badge wearers have been primed for non thinking action that will create atrocities.

I'm speaking mostly of the USA and to a significantly lesser extent China. Most of the rest of the world's governments are not nearly as powerful and corrupt and really don't have what it takes to do violence on a massive scale.

I believe that we will see collapse of the old banking system by 2023, probably a bit sooner. Before that we will probably see them try to replace the USD with their own centralized crypto token. There will probably be an interregnum of violence and scarcity of real resources for at least 6 months to a year. Internet access will likely be sporadic. But one thing you won't need to worry about is your crypto being all gone after the collapse. Barring a dinosaur killing meteor, that is impossible.