[@Genni] Its an interesting mechanic, and might be a good substitute for rolling in a forum style RP, but i've never used it before. That being said, I'm happy to implement it if the majority of players want to use it, though I would personally prefer basing outcomes on what a character would likely know. 

For example, if your character is a numenera academic, its likely that they would know how a certain device functions, whilst someone that trained as a fighter in Ba-Adenu Forrest might not even recognise what a button is (depending on backstory, of course).