For someone correctly claiming we don't know how the brain works, you seem to have a remarkable trust in the brain-gut axis pop sci articles. It's always good

For someone correctly claiming we don't know how the brain works, you seem to have a remarkable trust in the brain-gut axis pop sci articles. It's always good to remember that much of the 'established' data in neuroscience (such as the A beta hypothesis) are very well within the possibility of being based on a decent amount of fraud, as has been shown recently. Not to say all brain-gut axis data is irrelevant, but, as with almost all of biology, the effect sizes of observables anyone typically cares about are pretty small. However, the visual system in rodents is probably the best data source we have that maps to any formal theory right now, along with temporal difference learning and RL in neuroscience.