Show less interest
Donella Meadows thinks it is one of the worst ideas humanity has had. Aristotle wasn’t fond of it either. And acknowledging the finite planet it is hard not to agree.
The idea of interest not only forces things to grow, as you have to pay back more than you borrowed, which is impossible on a finite planet, it also kills of our golden gooses of resources when they are put in a stressful reproduction rate race against it and discount our future as being less valuable then our present.