By that line of reasoning, we may as well eliminate tax brackets entirely. Or any sort of arbitrary limit, really. What makes an 18 year old mature enough to vote, but not a 17 year and 364 days old?

Humans, as all animals, have a built in maturity limit, which is puberty. After completed puberty you are biologically an adult. You can be a completely immature fool though biologically adult, as well as at 18, at 38 or until death. I'd say a majority of people live their whole lives without ever reaching adulthood in a spiritual sense. Go work in the service industry catering to an elderly clientele if you don't believe it.

How does that answer the argument? Puberty is not reached at the same age for all humans, or even both biological sexes?

Unlike a tax bracket, adulthood is not an arbitrary limit i reality.

I mean if you just want a number, I like the idea of a hard cap of wealth at 100 million

Enough money for you and your family to live the rest of your lives experiencing the best of the best that the world has to offer

Why would anyone even need more money? “People would be less motivated to achieve!” No, people would be more motivated because there’s more money to go around instead of sitting in a couple thousand bank accounts

Of course this is just an idea that wouldn’t work in practice and wealthy people would just continue to skirt the rules like they do now. And I’m not an economist so there’s probably some negative side effects I don’t know about

I appreciate your mathematical approach but what I consider bad is not having $1e9 or $9e8 but ability to pay less taxes per dollar than poorer folks. Bad thing is that kingpins of: mining, slavery and proprietary software are so rich while providing so little value to society/environment.

Examples: mining materials from Earth is important, but the revenues should belong to all who live on the planet being mined. Slavery situation (I mean Nestle corporation and most of Cobalt production) is a pure shame. Proprietary software is a shame as well because it effectively converts users into digital slaves, effectively this is a branch of Mathematics which is forbidden (and obfuscated) to learn.

The only thing of value business owners produce is tax revenue?

There's also the value of whatever labor they do! But that labor probably isn't worth 100x someone else's work.

You play your cards right, you could be in the three-comma club, too. But probably not. But you could be. Probably not.

That's the thing I don't get: the vast majority of people are not rich, and will never be. Why do they fight so bad to help the rich people pay less taxes?