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The Usury Conjecture on the centralized, interest-based, debt-money system
Thomas H. Greco, Jr. -- Economist Thomas H. Greco, Jr. -- Economist
For Immediate Release:
Dateline: Tucson, AZ
Friday, June 3, 2022


The Usury Conjecture on the centralized, interest-based, debt-money system
Revised June 2, 2022
Thomas H. Greco, Jr.

The Usury Conjecture in a nutshell
The central banking, interest-based, debt money system that is dominant around the world today is neither stable, nor sustainable, nor fair. The creation of money based on bank lending with interest creates an imperative for debt to grow exponentially with the passage of time. That debt-growth imperative drives artificial economic growth as borrowers compete with one another to acquire enough money from the always insufficient pool of money to service their “loans.”

When I first began my intensive inquiry into money, banking, and finance more than 40 years ago, it did not take long for me to discover the essential nature of money, where it comes from and how it is created, allocated, circulated, mismanaged and abused. I was astonished that this system has been allowed to become such a dominant force in the world, that it has wreaked such enormous devastation upon the world, and that it has been allowed to go on for such a long period of time. What has led me to those conclusions has been thoroughly documented in my many books, articles, and web posts.

I have long wondered why there seem to have been no serious attempts to model the monetary system that predominates today throughout the world. Then, in November 2011, I again met up with a well known economist at a conference in Michigan where we were both presenters. In his presentation he reported having conducted such a simulation in which the results showed an equilibrium state being reached. I was dubious about his conclusions but in the context of the conference there was not sufficient opportunity to raise pertinent questions or to discuss them in any depth. I later wrote to him with my questions and asked him to respond to my assertion that some of his underlying assumptions about the system that he used in his simulation might not have been realistic. That was the beginning of my attempts to more fully articulate my “usury conjecture” which over the subsequent years has gone through several revisions. I think my arguments are sufficiently well developed at this point to be useful to others in understanding the system and in designing realistic simulations and mathematical models that are able to reveal its inherent flaws. 

In my critique, I did not say that his model was “wrong,” only that some of the underlying assumptions were unrealistic and his model too limited to adequately describe the system as it presently exists. Here are the points that need to be considered:

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