I think you misinterpreted my comment (probably my bad, Im not an English native). What I meant is: It is important to make sure that the profits of stocks sold need to be taxed properly, and only the after tax amount that’s left over can be spend on, some may say frivolous, space adventures. Especially when it is often reported that billionaires dont pay hardly any taxes, since their wealth grew „only in equity“. But then suddenly they find themselves on a pretty expensive space vacation.