> IMO the much more likely explanation is that the brain uses contrastive learning somewhere. [...] Instead of using calculus and outer products to calculate derivatives, you feed real data and false data forward through the network and each neuron tracks and trains on the difference.
alt Hacker News
Interesting comment: https://news.ycombinator.com/item?id=49264602
> IMO the much more likely explanation is that the brain uses contrastive learning somewhere. [...] Instead of using calculus and outer products to calculate derivatives, you feed real data and false data forward through the network and each neuron tracks and trains on the difference.