How GDP is decided

GDP is Government Spending + Private Consumption + Gross Investment + (Exports minus Imports)

 The more money we print, the faster the GDP would grow.

 By injecting more money into Government Spending, Private Consumption, and Gross Investment, that would lead to more economic growth. Monetarily, economic growth is inevitable. The real economy may or may not decide to produce more goods as a result of more money being printed. But most likely, people will produce more goods and services if there was wage inflation so long as employment rates have not already been maximized. Deficit spending is necessary because that money that is being injected into GS, PC, and GI, must come from debt. When the Government takes out loans to pay for government expenditures, that boosts Government spending. When Consumers take out loans to pay for consumer purchases, that boosts Private Consumption. And when businesses take out loans to purchase new factories, buildings, and machine tools, that boosts Gross investment. So these loans become necessary to boost GDP. And thus the nation's debt and its GDP are inevitably tied.