The brain of Homo sapiens emerged around 250,000 years ago, and the cognitive revolution 70,000 years ago rapidly expanded what we now call “human intelligence.”
But that revolution didn’t come from a structural upgrade of the brain — it came from a leap in how we used it: language, cooperation, shared imagination.
Since then, our hardware has barely changed.
Only civilization has kept accelerating.
The Brain Evolves Only Under External Pressure
If we assume that the brain upgrades itself only under overwhelming external pressure, human evolution becomes easier to read.
Cold climates, hunger, migration — every major shift had a pushing force.
So what is the external pressure today?
It’s AI and technology — an artificial pressure humanity created for itself.
A New Cognitive Revolution Will Come From Technology, Not Biology
If we wait for natural evolution to trigger another cognitive revolution, we’re talking tens of thousands of years.
It will never match the speed of civilization.
In contrast, external AI and brain-embedded technologies expand human perception and decision-making on a scale of decades.
This is not a biological shift — it’s a forced update in how the brain is used.
What Remains When Brain Chips Become Ordinary?
If brain chips become as casual as putting in contact lenses, many human processes — searching, memorizing, hesitating — will be shortened or skipped.
Like starting an RPG with full cheat-code equipment: exciting at first, but quickly boring.
In such a world, what remains is the unevenness of interpretation.
What feels off.
What feels beautiful.
Where you pause, where you get angry, what you choose.
As knowledge and processing speed become standardized, differences in values and aesthetic sensibilities become more exposed.
The凸凹 — the unevenness — doesn’t disappear.
It becomes clearer.
If you ask which comes first — natural cognitive evolution or brain-embedded chips — the answer is obvious.
Biological evolution is too slow.
Artificial pressure is already rewriting how we use our minds.
The next cognitive revolution will be triggered by technology.
And at its center, human凸凹 will remain.