Our government didn't have the ability to print money? What if going to war meant raising taxes?
We took the control of the money supply out of their hands and instead used free and open source software to create money and move it around?
Our economy wasn't predicated on a target 2-3% inflation rate? What if you were not incentivized to spend your money because it's just losing value every day you don't spend it? How might our consumption/production patterns change? How might that impact sustainability?
The government couldn't move money from the 99% to the 1% every time a bank needed to be bailed out? What if they didn't print away all the value of money you earned? What if when the economy grew, the value of your money increased just as it would naturally if somebody wasn't printing away the difference?