I'm opened to having my mind changed, but i'm going to need more than that.
https://www.forbes.com/sites/sarahemerson/2023/02/28/effecti...
(They are now selling said castle.)
This is a very uncommon idea within EA. There are some people who support it ("patient philanthropy") but almost everyone within EA either thinks you should be working / donating to help people/animals (most "neartermists") or you should be working / donating to help reduce extinction risk (most "longtermists").