**Making sure the Tezos blockchain is decentralized for ever.**

Similarly to bitcoin’s difficulty adjustment, you could imagine decreasing the roll size as long as the Tezos Gini coefficient is above 0.5 and vice-versa.

This would deliver mathematical promise that “Richs won’t get that richer” while guaranteeing a number of bakers low enough to allow transaction volumes.

[The Gini coefficient is a measure of statistical dispersion ranging from 0 to 1. A coefficient of 0 would indicate an equal allocation to every wallet, while a coefficient of 1 would describe a dataset where the entire allocation goes to a single contributor. The Gini coefficient is easily computable with the Lorenz Curve.]

In 2017, the Tezos Gini coefficient of was **0.878** , which was higher than the Gini coefficient of the Ethereum crowdsale (0.832), or wealth in the world (0.804), the United States (0.801), and Switzerland (0.803).

0.5 is a random, but symbolic number. Feel free to own this idea and to compute an optimum static Gini coefficient.