3. Real assets behind it, so everybody know it can't fall under certain level or it will buy itself back and stop the fall.
No currency can work as a currency with point #3. That is a feature that the new leading currency must not have.
Why not?
If coins are sold and the property from this sales belong to all coin-holders and so does the interest from property.
Investment decisions get approved or disapproved by voting.
It is impossible. People want crypto because of the freedom it provides. You cannot have freedom on the upward price but have it controlled on the downside. If there are hard assets behind something, it prevents the rise, but can't actually stop the fall. There have been no examples of any pegged assets that have ever worked, because it logically does not make sense. An exception is if you want the price entirely fixed, like tether or the gold-pegged crypto, but then the value is purely the value of the asset behind it, and it loses some of the benefits of crypto.
