Economics 102.... The BasicsMoney Supply/Printing Money = DEBT
Central Banks Prints Money and LOANS it to the Banks which in turn loans it out to people and businesses. Interest is charged on the loan each time it's loaned out. They get people to take the loans (increase their debt) by offering low rates (near Zero %).
Another way of Printing Money that the Central Banks have been doing lately is "Buying Assets". I'm guessing buying Bonds and Stocks in the market..... Pushing/Manipulating Prices UP to crazy levels... buying/pushing bonds prices up so high that they are yielding near ZERO %.
All just my opinion/view/thinking