Memorize most of the street names in London and the quickest routes between them. Most humans could do it if they put in the effort (it's required to become a London taxi driver; a test called The Knowledge), but that information won't fit in 1m tokens of context so can't be learned by an LLM that wasn't explicitly trained to memorize it. Human brains are biological, so they can physically grow to encompass the extra information: https://www.pnas.org/doi/10.1073/pnas.070039597