0% maybe not. But it's the outliers and the didn't see that comings that kill ya. Sometimes literally.

So while the odds at the extremes are low, they cannot be ignored.

No one can predict the future. But those that assume tomorrow will be like today are - per history - going to be fatally wrong eventually.

So the choices are 100% or 0%?

That’s my point – they are not. Your previous comment implied to me a belief that any attempt to draw inference from past events was doomed to failure!

Each circumstance is different. Sometimes the past is a good guide to the future – even for the notoriously unpredictable British weather apparently you can get a seventy percent success rate (by some measure) by predicting that tomorrows weather will be the same as todays. Sometimes it is not - the history of an ideal roulette wheel should offer no insights into future numbers.

The key is of course to act in accordance with the probability, risk and reward.

I did not speak with certainty. Everything I said is guess and opinion.