[yodi]

Global distribution is complex. So there is no easy way to do it. Now, what is the option here? Your assumption, around 6 billion of those humans have a bank account. So, we can leverage the bank network to do the distribution.

There is a chance of the same person opening multiple account. Integrating with one bank at a time will help not to do manual transfer and build a centralized database for verification simultaneously. There is no time limit here, I assume this is fine.

How about the rest, the unbankable? Via country social aid. There is a high correlation that the unbankable is similar to under poverty population. With social aid, it will reach them. Cross-check with the central database for verification.

Now, what if the 1 dollar doesn't need in the form of physical money? There are so many alternatives to this. I said, follow on how people spend money.

You can use it to pay each Taxpayer all countries, pay the debt of each person in the bank, and subsidize commodities that the unbankable population consume: data, rice, bread, electricity, vaccine and others thing that people spend. So, understand how unbankable people spend and receive money.

There is a cost of distribution. My rough intuition is probably around 30-40%, if we are looking for precise in-person equal distribution. Yes, that is really expensive, even more for unbankable, because most of them will receive cash.

Thank you for the question @paulluuk. This is a good brain exercise and seems like consulting interview question for me hahaha