Synaptic pruning and infantile amnesia as biology's version of pre/post-training
sytelus · x · 2026-09-26
Pushing back on the claim that biology has no pre-training/post-training divide, sytelus argues the split does exist: early-childhood synaptic pruning and infantile amnesia around age 7 mirror it. Before 7, children largely accept presented information as truth with little ability to reason (pre-training-like); afterward they develop strong reasoning through exploration and experience (post-training-like). He adds this is why adult memories before age 7 are so sparse. A substantive take on the AI-vs-biology learning analogy.
Related event: Debate: Does Biology Have a Pretraining/Post-training Divide(2 posts)→
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