By removing all human game data and learning only from self-play, AlphaZero first rediscovered human strategies and then discarded them for superior, 'alien' ones. This showed that relying solely on human data can limit an AI's potential, anchoring it to existing knowledge and cognitive biases.
AlphaGo's architecture mimicked human cognition by pairing a 'fast thinking' neural network for intuition with a 'slow thinking' search algorithm for explicit planning. This hybrid model, combining pattern recognition with calculation, proved more powerful for tackling complex problems than either approach alone.
AI's creative process mirrors Karl Popper's model of science. A generative model 'conjectures' plausible hypotheses (or hallucinates), and a verifier then attempts 'refutation' by testing them against hard criteria. This explains why AI currently excels in verifiable domains like code and mathematics, where correctness can be proven.
In the endgame, AlphaGo made moves that seemed suboptimal, even giving up points. This was because it wasn't optimizing for a large victory margin (a human heuristic) but purely for maximizing the probability of winning, even by a half-point. This reveals how literal AI objective functions can differ from human proxies for success.
The boom from LLMs was a 'shortcut' that mined intelligence from existing human data. This has limits. To achieve novel breakthroughs beyond that corpus, the field now re-integrates the original DeepMind philosophy of agents learning through interaction (like reinforcement learning) to generate truly new knowledge.
AlphaGo's infamous 'Move 37' was a play no human expert would have made, initially dismissed as an error. Its eventual success demonstrated that AI can discover novel, superior strategies beyond the existing corpus of human knowledge, fundamentally expanding a field of study rather than just mastering it.
A core legacy of AlphaGo is turning complex search problems into 'games' for AI agents. AlphaTensor reframed the challenge of finding the fastest matrix multiplication algorithm as a game, allowing it to discover a more efficient method than any human had found in over 50 years, proving the approach's power for scientific discovery.