Earlier quoted context omitted.
> If you reduce this down to the fundamental tension: either we have to ask women to become dramatically more vigilant and accept some nonzero risk of rape (more or less what we implicitly do already) OR we have to increase the likelihood of wrongful convictions. There's a third way, but perhaps equally unappetizing: record all interactions.
I'm going to assume you mean a video recording, which is the only way to be absolutely certain about what occurred when you have exactly two witnesses who also happen to be the accuser and the accused. I omitted this possibility for obvious reasons.
Video is obvious, but assuming you use a modern phone, you might as well add other sensors like accelerometer data, and extra channels like all WhatsApp conversations.
> I'm going to assume you mean a video recording, which is the only way to be absolutely certain about what occurred when you have exactly two witnesses who also happen to be the accuser and the accused.
Alas, even videos can be ambiguous. Eg picture some BDSM play. There can be lots of context required to make a decision.