Ah I wasn't gonna do computer vision. It's just, if someone says "I use protection with strangers, I test twice a year, I'm on prep" then it only tells you tha

Ah I wasn't gonna do computer vision. It's just, if someone says "I use protection with strangers, I test twice a year, I'm on prep" then it only tells you that they were negative a couple months before their last negative test. What if they have unprotected sex with a steady partner, who has unprotected sex with a steady partner, who hasn't been tested since a one-night stand where they maybe forgot to follow procedures with a stranger? If you can draw a circle around a group of people and say that none of them have sex outside the circle anymore, and they all tested negative a few months after their last encounter outside the circle, it should be fine. With monogamy that circle is two people. If you can't draw that circle, the math gets confusing quick. How many degrees between me and a bug chaser? This has bothered me a lot lately.