What are some important facts regarding macroeconomics?

In the broad field of macroeconomics, the most important facts form the basis of other facts. Some of them include:

• The economy is not a zero-sum game. Contrary to expectations, the gain of one player and the loss of another do not cancel out each other. Instead, the economy experiences continuous growth in which the gain of one participant does not necessarily mean the loss of another.
• Inflation can be good or bad for the economy. Depending on the rate of inflation, the economy loses or gains from inflation. A little inflation is advantageous while too much of it deters economic growth.
• As a function of money, storing value can disappear when inflation is extremely high. With an increase, inflation devalues money. In the case of extremity, the value that money holds completely diminishes.
• Money remains neutral. Changes in the supply of money only affect nominal variables such as exchange rates and not the real variables such as real GDP and employment.