Loving this concept perhaps really useful for my work laptop (as in my own one but is only for work stuff) as quite often you just want to quickly backtrack and find that piece of info you looked at earlier rather than navigate to it again. I’d imagine something like a physical wheel on your desk to wind back would be amazing. I have a useless Bose one that never gets used, can imagine it would feel very “black mirror” to use that to rewind.