You might personally have seen a deer just once, but human evolution, and animal evolution prior to that have practiced this skill a lot. AI doesn't have the advantage of evolutionary priors baked in, so it needs explicit walking through many combinations to infer its structure from data, and is remarkably efficient. GPT-4 'only' trained on the amount of language that 30,000 humans use in their lifetime.

But we have seen from AlphaGo that when training data is extensive, it can rediscover strategy on its own and even surpass us. It's not inherently worse than human learning.