Get a large piece of bread (don't make it too large!!!!). Chew a little bit, but not fully. Then swallow. You should feel it getting stuck in your esophagus. Theoretically this should make you hiccup because you get hiccups from eating too quickly
It doesn't do anything any more, that's why when it gets infected, it can simply be removed instead of replaced.
Better and easier communication, connects everyone together so everyone gets access to many things such as help (like 911 when someone is dying or something)
however, it also damages our personal privacy because the government can wire tap and etc
