Forward Looking

Someone was talking about a book, Stumbling to Happiness, and told me

...looks like this book tells you all the ways you tend to be unobjective, especially about the future...

Like they say, prediction is hard, especially about the future!

Hence, I gather, the "stumble".
So should my brain be humble?

Or if I'm feeling dumb,
should I buy this book
to learn new ways to look
at all that is to come?