It shouldn't be but a new Janken robot (Janken is the Japanese name for Rock, Paper, Scissors - why is the West stuck with a French name for an ancient Egyptian game? It's a mystery of linguistics) can win against humans without fail.
Is it psychic? Are humans that predictable? No, it basically cheats - if by cheating I mean being much faster than I can ever be.
Humans tend to think about their opponent and anticipate what they will do, including what they think about what they think they will do; we basically falsify ourselves and then pick something random at the last moment. The Janken robot instead uses super-fast vision, according to its creators in the Ishikawa-Oku Laboratory at the University of Tokyo.
Credit: Ishikawa-Oku Laboratory
The Janken robot's high-speed vision system analyzes the position and the shape of the human hand and, because it can act in 1 millisecond, it recognizes whether rock, paper or scissors is being played and successfully counters it. It can't lose. Think you will just change your mind? What about 1 millisecond do you not understand?
See it in action and be very afraid: