I agree, our brain is extremely lazy - that is part of its efficiency! Most everything wishes to be automated, run behind the scenes without consciousness having a peek. When a new problem arises, it searches for the easiest solution, not necessarily the best. However, compounded, this can lead to a completely false image of the world, yet one that works! :-)

I'm not sure how many people enjoy thinking the unthinkable; all we know is how few come forward to say the unsayable.