Comment by general_reveal

This aligns with Christ’s redemptive work. Someone above even mentioned that a change had to happen to all humans about 3000 years ago, that’s about when Christ died (2000 years). It was told his spirit would enter the world when he died.

The thing you are referencing is actually describing the alleged Holy Spirit entering the world:

(With a little help from AI, don’t kill me)

In Christian pneumatology (the study of the Holy Spirit), there is a similar paradigm shift between the ancient world and the New Testament. In the Old Covenant, God's presence was primarily external (pillars of fire, the Ark of the Covenant, stone tablets). With Pentecost and the Holy Spirit, God's presence moves inside human believers ("a new heart... and a new spirit within you," Ezekiel 36:26; 1 Corinthians 6:19).

Development of Conscience: The transition from external command-driven behavior to an internal moral compass echoes the New Testament promise that God's law would be written directly onto human hearts and minds (Jeremiah 31:33).

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The change Julian Jaynes observes was actually divinely promised, interesting that it can be measured.

Further, the original study that sees the merging of the two parts of the brain would also fit the Holy Spirit providing reconciliation of how your brain is even wired after it was imparted onto the world. This was all promised , if you believe Christ. It’s even more reassuring that that this biological reconciliation happened around when Christ died , plus or minus a thousand years.