...how about previously taxed income that was saved or invested intended to be spent later with no tax penalty. Your scenario doesn't exist. Taxed income that is withdrawn to be spent IS already having its purchasing power reduced by our tax system.... on EVERY purchase, whether the item has been previously taxed or not.
THere is no reduction in purchasing power.
Simple answer to you and the other farttaxers. BS. BTW, the pre-index argument is the silver dagger into the heart of the dark monster that the farttaxt certainly is.
You can't make claims on purchasing power based on alleged facts not yet placed in evidence.