People will tell you we have all sorts of biases. So what!
Do I contradict myself?
Very well then I contradict myself,
(I am large, I contain multitudes.)
⸻ Walt Whitman, Song of Myself
Our intuition is our connection to our unconscious self. Our unconscious self deals with and processes much, much, more information than we'll ever be aware of. For example, blindsight is the phenomenon when we are able to, say, avoid objects that we did not even see.
Yes, it is good to be aware of our biases, but it’s not essential, and I'll argue, even detrimental to focus too much on them. Being aware of them doesn't even help too much. For example, being aware of the effectiveness of advertising does not neuter its effectiveness. Similarly, you will buy the $9.99 over the $10.00 even if you're a marketeer who knows all the tricks.
We can be a bit more aware, and it helps being completely tricked, but to be fully aware of and on the safeguard against these biases all the time would be to deny our own full selves existence - it would entail identifying ourselves only with our rational discursive thought. But we are much more than that. Denying the validity of our own intuition just to safeguard against some silly biases is like sinking a ship to drown a mouse.
If I rely on my intuition, I will be wrong. But that's how I will learn, and that's how I'll improve my intuition.
I trust my intuition more than I trust my rational reasoning, for I know: Give me any point of view, any choice, and I can justify it. What I've found is that being accurately rational doesn't improve my conclusions, it just increases the sophistication of the arguments I come up with to fool myself.
Reasoning, rationality, deliberate thought - these are all excellent, indispensable, tools. But they don’t have to become my identity.
I think Kahneman's book, Thinking Fast and Slow, misses the forest for the trees. It is in isolation a good, insightful, book. But because of the cult of "cataloging biases" that has sprung up around it, and its uncritical recommendation by people that we look up to, I consider it a harmful book because it normalises throwing away the outcome of eons of evolution in the face of some parlour tricks.