"A global wealth tax could arrive sooner than you think." wrote Martin Sandbu on May 19th, 2024 in the Financial Times: https://www.ft.com/content/1f1160e0-3267-4f5f-94eb-6778c65e65a4

The question resolves yes if the G20 (or any group of countries representing more than two thirds of the world's population and GDP) approves a global personal wealth or income tax by 2035. The question resolves yes even if the tax applies to a very small group of people due to a high threshold (for instance, billionaires). The question resolves yes if the new tax is implemented as a minimum effective taxation rate (similar to the proposed global minimum corporate tax rate).