dv said:

https://www.lesswrong.com/posts/bB5EDwcYH3GwoRWZf/women-should-be-able-to-open-things

Does the proper amount of friction for maintaining spread safety fall just between the male and female human grip strength distributions? This study suggests that would be about 400N Fmax (though this would not avert most elite female athletes acquiring jam, see second figure, and the pictured participants are young adults)

one why do they talk about gender complication then switch to sex differences in grip strength

two so grip strength is a reliable classifier for sex

three brute compressive gripping force is passé and jarring, it takes torque to twist open containers, the simple solution is to mill the lid circumference