It was big news in 2017 that Alpha-Go, a computer program with
deep-learning algorism running on a supercomputer with 1202 CPUs and 176 GPUs, defeated a world champion of the Go game. People said this was a dawn of the AI era, but the Alpha Go consumed
200kW just for the Go game. In contrast, the brain of the Go champion could think what the menu of today's dinner even while playing the game with
only 20W power consumption. What was the real winner? It was the brain without a doubt.