99% income tax on any form of income if you own more than a certain amount. 50 million should be enough for anyone. maybe with the exceptions of patents that you, personally, invented. none of these billionaire fucktards deserve more than that. they will then be forced to spend their wealth if you tax them 99% and then their money will actually trickle down. the increased tax revenue is just the icing on the cake. the price of real estate will drop to affordable levels literally overnight.
Germany