It has nothing to do with taxation - or else the Arab Gulf or Cayman Islands would be entrepreneurial hubs, not California or the Toronto area. It’s all about the price of quality labour. It’s about access to long-term risk capital (aka venture funds) + high quality labour at affordable prices. As in, entrepreneurs having cash to fund projects and being able to actually hire people that will help build them. Try hiring a hundred software engineers in Norway: your hourly cost would probably blow up. The low-tax destinations are the place billionaires go to park their wealth, not create it (for example, outside of Tech Nordic billionaires move to Switzerland after they get rich)