#99 – Karl Friston: Neuroscience and the Free Energy Principle
Lex Fridman Podcast
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*The Free Energy Principle as Optimization Function of Surprise *
The free energy principle states that anything that exists must exhibit properties that make it appear to optimize a certain quantity./nThe particular quantity that the free energy principle refers to is the evidence lower bound, also known as the Bayesian model evidence or a bound on surprises./nThe quantity is essentially the log probability of being in a particular state./nWhile the speaker is not an expert in physics, they are attempting to answer the question as if they were a physicist trying to understand the fundamental non-equilibrium steady state./nThe free energy principle can be applied to different systems, but the speaker does not specify which systems in particular.
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