Have you heard of “Themes”?

Seriously curious: why is that?

Just in case you are looking for a serious answer: it all depends on your living expenses and how much support you will receive in case something happens. Where I live, we have a good (but still improvable) state support system. Here, the general rule is to have 3 months of expenses on the side. It’s meant to cover your costs until you find a new job or be a buffer for unforseen expenses. Only you can determine how much you think you need.

I agree with you, that ecologically, this will probably be a good thing. Economically, we will need a different system as i doubt that any increase in consumption per capita could outweigh the increase in people we currently see. And our economic system is dependent on growth.