Me: “Yea, I know man. I can’t believe it’s risen 1500%

Me: "Yea, I know man. I can't believe it's risen 1500%

My professor stops writing on the chalkboard and turns around. "Nothing that raises 1500% that quickly is a good investment. I'm so tired of hearing about Bitcoin this Bitcoin that"

Me: We were talking about the cost of College tuition since 1990