After listening to the shortstory "The Comet" on a Podcast today, i got to thinking:
If (almost) everyone died, suddenly, inexplicably, how long would it take for stuff to stop working? How long for phones? Internet? Electricity? Running water? Sewage? Other interesting stuff?
Afaik, none of those constantly require direct human input to keep working, but they will obviously fail at some point. So what is the timeframe for this?