[Joker_vD]

No, I meant that the screen could mess up the video stream shown so that it would look "fine" for the human eye but as a completely scrambled mess to a camera. You know how hard it was to film a CRT-monitor and AFAIK there have been some (abandoned) research on how to put something like that into LED specifically do defy the screen-capturing.

[jl6]

CRTs were never impossible to film - you just had to put in some effort to adjust shutter settings on the camera.

I can’t imagine there existing a technique for emitting photons perceptible to the human eye and yet it not being possible for a camera to capture them.

[derealized]

Got it, that makes sense. With monitors now in 60-120Hz being common, that might be doable.