Im more concerned about money so that the worst off can have a decent enough life than stopping wealth. I want the tax to also make it so you have to be that much more competent to be wealthy and to naturally control the size of peoples fortunes and corporate sizes. I believe if the tax is high enough we should not have to take much action against monopolies. So essentially I feel we have so many idiot rich people now because its waaayyyy to easy to make money once you have money. If your loosing half in the process of profit it will require a modicum of brains. 50% is high enough to me to meet these goals. If it was the only form of tax it could go higher but Im assume we still have other taxes that will make effective taxes more like 2/3rds. What you suggest would have to have no inflation or flexibility in an economy which is just not the case. I don't care if there are billinaires if the poorest are millionaires. One problem with the billionaires now is that most people are currently thousandaires.