Market timing may be impossible, you can still observe that it's getting irrational. Observe crypto currencies at the peak, people were talking nonsense that w

Market timing may be impossible, you can still observe that it's getting irrational. Observe crypto currencies at the peak, people were talking nonsense that was never going to be true, and it was quite obviously a bubble. That irrationality just makes it harder to predict when the crash will come. Yield curve is a somewhat rational measure, bubbles aren't rational (from a financial perspective). BTW I was given 0.01 of these new fangled bitcoin years ago and promptly forgot about it. I sold in October before the crash. I make no claims to be any kind of investing expert, but I assume that counts as putting my money where my mouth is.