Has Theoretically-Guided Practice Vanished in Modern Machine Learning?

NeighborhoodFatCat · reddit · 2026-08-15

A Reddit discussion argues that many classic ML theories (e.g., overfitting risks, generalization limits for big models, test set taboos) have been debunked or rendered irrelevant by practice. These theories evolved from math to folklore in textbooks and interviews, only to be overturned by the empirical success of deep learning. The post questions if ML is now purely empirical or if any theoretically-guided practices remain.

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