I know that this might have been asked several times and that it widely varies across regions.
So, the question is: What is the minimum monthly amount that, if you could somehow ensure it forever, you would be willing to retire right now and never work again? Please also provide your country.
This amount should include all your basic needs plus anything you'd desire in order to maintain about the same quality of life you have today (unless you'd be willing to sacrifice some of it). You can assume this amount forever regardless of inflation. Do not assume any of your existing assets (except housing if you have your own house).