This describes like half of finance. Treasuries, bank deposits and credit cards all represent to varying degrees “synthetic dollars.”
I highly recommend this Coursera course to shed light on this: https://www.coursera.org/learn/money-banking
https://www.coursera.org/learn/money-banking
I highly recommend this Coursera course to shed light on this: https://www.coursera.org/learn/money-banking
https://www.coursera.org/learn/money-banking