# \#computation

**URL:** https://discourse.numenta.org/tag/computation/241.md

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## [What is the Basic Cortical Column Computation?](https://discourse.numenta.org/t/what-is-the-basic-cortical-column-computation/5092)

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**Author:** [@Bitking](https://discourse.numenta.org/u/Bitking)\
**Replies:** 5\
**Last updated:** [April 1, 2021, 5:23pm UTC](https://discourse.numenta.org/t/what-is-the-basic-cortical-column-computation/5092 "2021-04-01T17:23:47Z")

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I struggle to pin down exactly what it is that a macro-column is doing; there is a lot going on here. Pattern matching (by pattern recall) Novelty detection (by pattern recall mismatch) Pattern learning (by novelty tri…