DeepMind "never found the limit" of AlphaGo Zero's intelligence

Alphabet's DeepMind has been making incredible strides in the field of artificial intelligence (AI). Their AI can create pictures based on sentences, play StarCraft, and explore strange environments. It has also developed memory and is imagining solutions to problems. AlphaGo, an AI, was created by DeepMind in order to conquer the oldest game in the world: Go; an incredibly popular game known for being even more complex than chess. What better game to test an AI on?