>>16585422there are only two things we can know for certain
that because we think, we are, and that satori is so freaking cute
i think most people either don't worry about other people's sincerities so much or they just take on faith that other people are more-or-less sincere since the alternative is a bleak outlook and that's no good
you can also go at it in a more complicated way like even if they are insincere to you they might have a framework of sincerity they apply to things they sincerely care about even if they don't want to show it off to you