He's referring to the Columnar hypothesis [0] - that all so-called "cortical columns" in the neocortex have the same basic computational behavior. There's contr

He's referring to the Columnar hypothesis [0] - that all so-called "cortical columns" in the neocortex have the same basic computational behavior. There's controversy about this, the main issue being, as you noted, heterogeneity between columns [1]. [0] https://en.m.wikipedia.org/wiki/Cortical_column https://en.m.wikipedia.org/wiki/Cortical_column [1] https://academic.oup.com/brain/article/125/5/935/328135 https://academic.oup.com/brain/article/125/5/935/328135