9. Amnesia
Back on Earth, we catch up with a man suffering from amnesia. He doesn't remember anything. Not his name, his parents, or what he did before his accident. All this due to a vicious hit to the head he suffered some time ago, which wiped his memory clean. It's only later that we find out our main character is actually a secret agent, on the run from a group of terrorists, or something equally dramatic. For filmmakers, amnesia is a convenient plot device that facilitates the story. In the real world, however,
the affliction works a bit differently. Only in rare instances is a hit to the head the cause of memory loss. More typical causes would be stroke or an infection of the brain. Secondly, a person's memory isn't simply erased, like files on a computer. Often times those with amnesia retain memories up until the incident that caused it, with some unable to create new memories. In almost all cases, amnesia does not set the stage for a
series of comedic first dates.