The transporter: Star Trek’s most futuristic technology, allowing instantaneous travel between any two points, all with a swirly special effect.
Or is that a lie? Is the transporter actually, well, a suicide box?
You must admit, CGP Grey makes a convincing case, and it’s a funny watch even if you have heard the argument before. Yes, it’s our old friend the Teletransportation Paradox – essentially, are you still you when you step off the transporter pad, or does the machine actually kill you every time?