yes, definitely. I find it helpful to think of usability and friction as an inverse square law relation [0]. Small increases in friction (x-axis) cause dramat

yes, definitely. I find it helpful to think of usability and friction as an inverse square law relation [0]. Small increases in friction (x-axis) cause dramatic drop-off in usability (y-axis) to begin with, then correspondingly less so. Specific user tolerance will vary, but adoption broadly follows a similar path - exponential drop off. I've never seen any data to back this up in a quantitative sense (though interested if anyone has?). Nevertheless, I've still found it useful as a qualitative rule of thumb in a positive sense: shaving off small edges of friction can have non-linear return in adoption and satisfaction. [0]: https://en.wikipedia.org/wiki/Inverse-square_law https://en.wikipedia.org/wiki/Inverse-square_law