I totally admit I said 20-30% because that felt right to me. I guess I ought to sit down and look at the stuff governments provide that I appreciate (such as basic police protection and infrastructure) and how much that costs. And I should probably look at all the bad things governments do (unneccesary wars, intrusive nanny state rules etc.) and how much damage that causes.<p>Of course, there are other things that affect whether a tax rate seems reasonable, too. For example, in a country where the difference between rich and poor is great, it might make sense to tax the rich more than in a country where the difference is small.