@quixote @Strandjunker
I think a infinitely progressive income tax is a good idea. It should include stock trading profits too.
For removing wealth from the super rich fair inheritance taxation would also be neccessary, but should also certainly be doable.
A tax an wealth is also possible, but can be very difficult to implement, as the worth of many objects is very much a topic of debate (for example art). To go through that effort for the few ultrarich should be possible though...