Post:
You have three switches in one room and a single light bulb in another room. You are allowed to visit the room with the light bulb only once. How do you figure out which switch controls the bulb? Write your answer in the comments before looking at other answers.
Comment:
If this were an interview question, the correct response would be "Do you have any relevant questions for me? Because have a long list of things that more deserving of my precious time than to think about this!
you must be from a parallel timeline friendo. in this reality, google promised 'don't be evil', then trashed that.
I remember those days, lived through them.
it doesn't change the crux; you turned it on briefly and supposed can identify which one it was because it got HOT. this would not occur with LED lighting; only incandescent would get warm enough fast enough to maaaaybe work in this setting.
DO NO HARM is the oath medical professionals take, aka they hippocratic oath. https://en.wikipedia.org/wiki/Hippocratic_Oath