One tool to help enhance human cognition requires years of childhood training.
It's quite the investment to apply universally but it pays off. It enhances human memory, ability to reason, absorb information, ability to calculate and do accounting, it also helps with communication. It makes more complex societies possible. It also enhances entertainment.
This tool integrates a primarily auditory symbol system with a visual one.
It's called reading and writing.
TIL human sweat is the most extreme and distinctively human evolutionary trait as a whole.
https://www.sciencefriday.com/articles/sweat-glands-evolution/
#til #todayilearned
https://www.reddit.com/r/todayilearned/comments/1dsweee/til_human_sweat_is_the_most_extreme_and/
“What we obtain too cheap, we esteem too lightly: it is dearness only that gives every thing its value. Heaven knows how to put a proper price upon its goods; and it would be strange indeed if so celestial an article as freedom should not be highly rated.”
“The heights by great men reached and kept were not attained in sudden flight but, they while their companions slept, they were toiling upwards in the night.”