Gut instinct and intuition raise questions about human capabilities and what the brain is capable of. The speaker reflects on their own experience of intuition, curious about the underlying mechanisms such as frequencies impacting intuitive insights. Consulting researchers in psychology and cognitive neuroscience, the speaker delves into understanding intuition and how we can know things without being consciously aware of them. The researchers suggest that intuitive insights stem from non-conscious processing that occasionally surfaces to conscious awareness, leading to moments of 'knowing what, without knowing why.'