When you see a tweet it’s tempting to think that the person who sent it is using their computer or phone RightNowTM. That’s not always the case. You see, computers can Tweet too. It doesn’t have to be a real person. The picture below shows a list of Tweets for @toacomputing queued up ready to be posted. The app posts one each day.
This doesn’t just apply to Tweets. Computers can do all sorts of clever things for us while we’re asleep / on holiday / in class but not paying attention. Here’s another example from Raymond’s blog. Rather extreme perhaps.