[Principled]

I have acknowledged that after tax savings will be taxed when spent. While this is obviously not attractive to those with after tax savings, it is by no means an indication that those with after tax savings will have reduced purchasing power. That's the leap you're making - which is in error.

That there may be some who do indeed have reduced purchasing power isn't in question. Some will. An obvious category or two of folks who will have reduced purchasing power are all illegal immigrants and those who cheat on income taxes by underreporting income, over reporting expenses, or by not reporting the income at all,

You have not established (although you've been asked to do so) that there will be any legal participant in today's income tax scheme who will suffer a net loss in purchasing power. You have only stated that after tax savings will be taxed when spent. We all know that.

We also know that pretax investments will exprience a large gain - so will any capital asset gains - so will any earnings.

You choose to look at one aspect of purchasing power to the exlusion of others. That's ignorant.

That would be like focusing on what happens to 401k money without inspecting what happens to anything else. Let's see - my effective rate at retirement will be about 15%. So according to your "logic", my net posiiton will be 15% better.

What makes it funnier.... you assert that the other things that affect my net purchasing power are "unrelated"!

LOL.

[GregoryFul]

I have acknowledged that after tax savings will be taxed when spent. While this is obviously not attractive to those with after tax savings, it is by no means an indication that those with after tax savings will have reduced purchasing power.

You are acknowledging that after tax savings will not be able to buy as much stuff if the FairTax is implemented, and say it is obviously not attractive to those with after tax savings (Why?). Your last assertion is completely contrary to your understanding of the issue in light of your concessions.