I have slightly updated this post [the videos are now embedded on the page].
I am working on a post about the monetary and financial system of space colonies, which I expect to finish tomorrow. For the time being, I have selected a few videos by economist Professor Richard Werner. In the following videos Prof Werner explains how banking works in reality, how the financial system works and he gives alternatives for the current systems.
Video 1: Richard Werner: Banking and The Economy
Video 2: Richard Werner: Debt Free & Interest Free money