You've dedicated one of your life phases to expanding your understanding of the universe around you. Your mind is limber, and your expertise is impressive, if specialized. You're trained in a skill of your choice that has the
Recall Knowledge action. You've taken more than one math class over the years and learned the value of a good estimate. You can immediately learn the number of visually similar items in a group you can see, rounded to the first digit in the total number.