Other thing that some people disastrously fail at internalizing is the time limits and the necessity to make best use of available time. Many techniques of rational thought are incredibly time-expensive; especially those related to probabilities; a lot of the time in the real world you can dramatically improve your certainty easier than you can calculate appropriate degree of uncertainty, to high reliability (people tend to be sloppy at math, and the priors are all too often horribly off due to unawareness of the degree to which the proposition was privileged).
Example: professional problem for software developers—often you are stuck choosing the best way to implement something, wasting as much time as implementation of both options would have took. The opposite also happens—rushing to implement ill-conceived design that takes a lot more time than would of spent to find better way to do it (essentially, the effort is unbounded and any solution that can be done in a man-week can also be done, and routinely gets done, in man-year or a man-decade, when the effort is sufficiently misguided)
Other thing that some people disastrously fail at internalizing is the time limits and the necessity to make best use of available time. Many techniques of rational thought are incredibly time-expensive; especially those related to probabilities; a lot of the time in the real world you can dramatically improve your certainty easier than you can calculate appropriate degree of uncertainty, to high reliability (people tend to be sloppy at math, and the priors are all too often horribly off due to unawareness of the degree to which the proposition was privileged).
Example: professional problem for software developers—often you are stuck choosing the best way to implement something, wasting as much time as implementation of both options would have took. The opposite also happens—rushing to implement ill-conceived design that takes a lot more time than would of spent to find better way to do it (essentially, the effort is unbounded and any solution that can be done in a man-week can also be done, and routinely gets done, in man-year or a man-decade, when the effort is sufficiently misguided)