That also assumes every bill you use will be immediately returned to a bank. You’d have no way of knowing where money comes from and belongs to after one hop. Just make a purchase at the supermarket to exchange a 50 for 45 and you’ve got anonymous cash.
What if the government pays the supermarket to do it? They’d have a financial incentive, then. I could imagine this scenario in a high-security authoritarian paradigm.
That also assumes every bill you use will be immediately returned to a bank. You’d have no way of knowing where money comes from and belongs to after one hop. Just make a purchase at the supermarket to exchange a 50 for 45 and you’ve got anonymous cash.
This assumes the supermarket doesn’t track everything
They don’t. It wouldn’t benefit the corporation in any way. They’ll only do what makes money and that would cost money with no return.
What if the government pays the supermarket to do it? They’d have a financial incentive, then. I could imagine this scenario in a high-security authoritarian paradigm.
And this would be different from Bitcoin? You know you can track it pretty easily, right?