Also reminds me of that old website where people could send text messages to (before Twitter existed). There was this story of a person who could ping a machin

Also reminds me of that old website where people could send text messages to (before Twitter existed). There was this story of a person who could ping a machine and he knew it was in his house, but for the love of God couldn't find the machine. It's a very short story, but he ends up looking at the pings not knowing where this machine is runnning.