The Role of Money in the World

I was ready to watch the S&P 500 drop 25, 30%. And all of a sudden it went up 33%. Since then, inflation kicked in. How do you explain that to people? Well, I guess it depends on my mood when I wake up in the morning and who I'm talking to,. There's so many ways to describe it, but in essence, it's really simple. Money is merely a medium of exchange. It is whatever people want to accept in exchange for goods and services.