François Fleuret asks why RMSNorm's near-zero gradient blowup rarely causes problems in practice
francoisfleuret · x · 2026-11-07
François Fleuret poses a technical puzzle: RMSNorm blows up the gradient when its input is near zero, so why does this rarely become an issue in practice? It highlights a counterintuitive numerical-stability detail of normalization layers.
Related event: Why RMSNorm rarely suffers exploding gradients near zero(2 posts)→
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