Central bank policy isn't perfect, because human beings aren't perfect. But it's far, far, far better than having no policy at all -- economies used to follow crazy harmful cycles of booms and busts, bank runs, runaway inflation, and so forth. It's easy to take for granted how effective central bank policy is because many of us haven't experienced the lack of it at home in our lifetimes.

The central bank doesn't have a crystal ball to know with certainty where inflation will go. Much of that depends on historical events outside the US that are by definition unknowable -- how will food and energy prices be affected by war in Ukraine, for example?

But central banks are able to plan and then adapt appropriately as circumstances change. And citizens have long voted for effective central bank policy -- economic fears about inflation and recession are reliably the #1 popular concern. If a digital currency can help this, most voters will be very happy with it. After all, for people (like myself) who already make 99% of their purchases with credit cards, they're not giving up much.