[Verse 1]
Rao and Ballard watched the visual cortex dance
In ninety-nine they caught predictions in advance
Neural circuits guessing what comes next in sight
Error signals flowing when the forecast wasn't right
Top-down meets bottom-up in computational streams
The brain's not passive receiver but predictor of scenes
[Chorus]
Predictive coding, free energy too
The mind's a machine that's modeling you
Hierarchical Bayes updating beliefs
From Friston's equations to consciousness themes
Whatever next, whatever next
The brain keeps guessing, laying bets
[Verse 2]
Friston took the vision further twenty-ten
Free energy principle to explain where and when
Minimize surprise through action and perception
Active inference drives each neural connection
From cellular membranes to society's dance
One mathematical framework for biological stance
[Chorus]
Predictive coding, free energy too
The mind's a machine that's modeling you
Hierarchical Bayes updating beliefs
From Friston's equations to consciousness themes
Whatever next, whatever next
The brain keeps guessing, laying bets
[Verse 3]
Andy Clark declared the future has arrived
Situated agents keeping predictions alive
Embodied cognition meets computational might
The extended mind thesis gaining new insight
But Hohwy warned the boundaries might dissolve
When inner models all external worlds involve
[Verse 4]
From dopamine spikes to consciousness complete
The prediction error minimizing machine's feat
Anil Seth shows how perceptual illusion
Reveals controlled hallucination's conclusion
Reality constructed through Bayesian lens
Where prediction meets precision that never ends
[Bridge]
Then Cao came calling with a critical voice
New labels masking old ideas by choice
Does free energy add substance to the game
Or mathematical clothing for theories the same
Litwin and Miłkowski raised the testing bar
Can we falsify these claims or have we gone too far
[Chorus]
Predictive coding, free energy too
The mind's a machine that's modeling you
Hierarchical Bayes updating beliefs
From Friston's equations to consciousness themes
Whatever next, whatever next
The brain keeps guessing, laying bets
[Outro]
From retinal circuits to conscious experience
The prediction game demands our perseverance
Question every framework, test each bold claim
In cortical coordination's endless game