@rysiek That's a fair answer. The biggest concern I have would be if this hammers the upper middle class and is not aggressive enough on the real ultra rich. Someone with 1.25 million in assets in Belgium and a billionaire are not remotely in the same league - I would want the "progressive" aspect to be very aggressive.

Agree those are particulars though, and those discussions can't be had without starting somewhere. This is probably as good a starting point as any. Beats inertia at least 👍