[Bobylonian]

The problem with the consciousness is that by default it is limited to ability perceive senses and bacteria clearly is beyound our limits of consciousness, but that does not make them less real. Our brains collect and process information subconsciously - the layer of our consciousness is not responsible for all the background work, that our brains are doing. There can't exist hypothesis in regards of gut processes affecting very thin layer of consciousness.

So, but can you disprove that gut bacteria can't impact brain processes? They can deliver signals to the brain, so what is exatly the obstacle that it makes it impossible task?