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Ancient genome duplications laid the foundations of complex brains

The update

Ancient genome duplications laid the foundations of complex brains is a developing story worth watching.

The significance

Hacker News frames this as significant because of how it shifts the existing landscape around ancient, genome, duplications, laid, foundations.

The context

The context includes earlier signals from Hacker News and other outlets that pointed toward this moment in ancient, genome, duplications, laid, foundations.

Where this fits in Signal Ledger

Related coverage from the Technology desk.

The read

The Signal Ledger view: Hacker News is right to flag this, and the follow-through will matter more than the headline.

Source note

Hacker News reporting: https://www.ox.ac.uk/news/2026-06-09-ancient-genome-duplications-laid-the-foundations-of-complex-brains

Read the original reporting