I founded a company and reached $6M ARR with >50% net profit margin. After 4 years decided to do a full rewrite. Finished it successfully within a year including full migration of all clients. Was the best decision ever.
Exactly this. It sounds easy but this type of creator who can do this is very rare but usually has a high success rate. This should be the defintion of the "10X dev"
OP had the thesis that the "Norway sovereign fund" is funded by high taxes. This fund is also known as the "Oil fund":
The Government Pension Fund Global, also known as the Oil Fund, was established in 1990 to invest the surplus revenues of the Norwegian petroleum sector.
Conclusion: The Norwegian society is not just rich just because you are that smart. You obviously had a good portion of luck.
That was just an example to make the point clear which varies from jurisdiction to jurisdiction. But even in your 15% example the long term effects are very significant.
A problem that is usually not noticed with a wealth tax is that you have to pay the wealth tax from money which already has been taxed with some sort of income tax.
Means a 2% wealth tax combined with a 50% income tax, dividend tax, capital gains tax or whatever ends up being a 4% wealth tax effectively.
Example: You own stock worth $1,000,000 and the government wants 2% wealth tax from you which means $20,000. But to get that $20,000 you have to sell $40,000 worth of stock and pay 50% income tax for that sale and the government ends up taking 40,000$ effectively.