…is almost always more profitable than investing when everything seems certain.
Investors, like most people going about their daily lives, don’t like doubts and uncertainties. So, they pay money and give up opportunities to avoid it.
Of course, it’s a good idea to avoid entirely what you can’t totally get your mind around, successful investing is largely about living through the uncertainties.
If you need reassurance, you’re giving up quite a bit to get it. Like high fees to experts who would predict the future (which you falsely believe as reassurance, which it isn’t), or expensive prices for stocks (because everyone knows their future is clear, which often isn’t).