Well, again, I do appreciate the effort and it is refreshing to get a thoughtful response, but a DDI is not a version of a UBI.

It is not paid to everyone (or even all adults) — though any adult citizen could become eligible for it.

It does not involve taxes — it even provides a way of funding government (at all levels, from local to central) without taxes (or public debt).

It can be thought of as a kind of permanent QE for people, but thinking of it as another form of any familiar construct can lead to misapprehensions.

To prevent inflation, it does have a mechanism for returning money to its point of origin, but people and businesses could retain plenty of money (based on income) and (unlike taxes) no money would be collected from any person or business before it could be used for purchases or investment.