What do I "think"? LOL, thinking is hard! I know, I've studied this. Here are 3 questions:
1. What's your favorite dessert?
2. What's your favorite color?
3. What's 17 x 42?
If you are like most people, the first 2 questions were easy, and then the last one...everything probably just ground to a halt as you tried to figure out the answer. Because thinking is so hard (really! it takes more energy, which takes more glucose, which starts increasing your metabolism) we have evolved certain cognitive biases to limit this, in order to conserve energy.
These cognitive biases lead to some fairly predictable behaviors. Especially in the realm of logic & reasoning, there is the idea of "fallacy" see
https://en.wikipedia.org/wiki/Fallacy .
With regards to human judgment, this is a good read:
https://www.nobelprize.org/uploads/2018/06/kahnemann-lecture.pdf In this, Kahnemann discusses his (and others) work on the "heuristics" of human judgment, in which he identified two basic processes: i) a intuitive or "gut" level decision making process, and ii) a more effortful and deliberative decision making process. He also studied the ways in which humans can be fooled and/or the lengths humans will go to to avoid deliberation and/or effort.