Same Same But Different
Artwork is the album cover of “Turn It Up” by $ken
To say that the brain is an algorithm is to use a phrase that sounds more sterile than the reality it tries to describe. The mind does not and shall never feel like code because it moves through fatigue, bliss, fear, among millions of other human conditions. And yet, the comparison persists because, beneath the texture of lived experience, something patterned is taking place.
Neuroscience has shown over and over again that the brain is not passively receiving the world. It is sorting, filtering, predicting, and revising, which does in fact mirror an algorithm. It takes incomplete sensory evidence and turns it into a version of reality. It leans on prior experience, updates expectations, and adjusts when those expectations fail. In that sense, our delicate little minds do appear to carry out organized operations like an inferential system, constantly building a model of the world from minuscule scraps of consciousness.
That is the scientific strength of the idea. The brain can be studied computationally because many of its functions follow recurring procedures. How we perceive the world (whether it be through our attention spans, decisions, et cetera) involves processes that can be modeled, but the phrase becomes misleading when it is taken too literally. The brain is not a script running on a machine, rather, it is a biological organ run by chemistry, energy, stress, sleep, history, and so on. Flexible, vulnerable, and always in motion.
This is where the metaphor becomes useful. The brain may implement algorithmic tendencies, but it does so in sentient flesh. It predicts through tissue (not code) and interprets from inside natural states like hunger, attachment, exhaustion, grief, and desire. That makes human cognition more strange than the machine analogy suggests. The point is not that the brain is a computer. Thought is eons more biological than computational language can ever fully capture, and it is absolutely adorable, admirable, and magical that our silly noggins are able to compute in the medium that is life.