Back propagation is a superior learning algorithm compared to biological brain learning because it can pack vastly more information into fewer connections—large language models with 1 trillion connections contain roughly a thousand times as much knowledge as humans, who have 100 trillion connections
causalpending
Speaker
Geoffrey HintonEvidence Quote
“they have about a trillion connections and things like gpt4 know much more than we do they have sort of Common Sense knowledge about everything and so they probably know a thousand times as much as a person but they've got a trillion connections and we've got 100 trillion connections so they're much much better at getting a lot of knowledge into only a trillion connections than we are”
Source
Possible End of Humanity from AI? Geoffrey Hinton at MIT Technology Review's EmTech Digital— Joseph RaczynskiCreated: 8/10/2026, 10:48:51 PM
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