Backpropagation requires discontinuous processing where neurons must freeze their feedforward activity values while error signals flow backward, requiring the brain to pause information processing for hundreds of milliseconds before updating connections.

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Unidentified Speaker — The Brain’s Learning Algorithm Isn’t Backpropagation [l-OLgbdZ3kk]

Evidence Quote

For this process to work, neurons must essentially freeze their feed forward activity values like taking snapshots of activity and holding on to them while error signals flow backward.

Source

The Brain’s Learning Algorithm Isn’t BackpropagationArtem Kirsanov
Created: 8/12/2026, 6:30:20 PM

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