As a lifelong seeker of knowledge and understanding, I have always been fascinated by the mysteries of the human mind. While I have explored physical frontiers across the globe, it is the limitless potential of the unknown unknowns in the sphere of human understanding that truly excites me.

These spheres of human understanding are categorized (as popularised by former US Secretary of Defense Donald Rumsfeld) into three types: known knowns, known unknowns, and unknown unknowns. The known knowns refer to what we already understand fully, while the known unknowns are what we know exists but have yet to comprehend fully. The unknown unknowns are the things we do not even know exist, and this is where the true excitement lies.

Exploring the unknown unknowns of the mind involves delving deep into the recesses of the human psyche and consciousness, and it is a journey of discovery and self-awareness. It is an intellectual pursuit that transcends physical frontiers, and it is through the exploration of the unknown unknowns that we can expand our understanding of ourselves and that of the world around us.

As we venture into the unknown unknowns of the mind, we push the boundaries of human knowledge and understanding. We encounter new ideas, concepts, and perspectives that challenge our preconceived notions and expand our understanding of the world. This pursuit of knowledge and understanding is not just limited to the realm of science and academia, but it can also lead to cultural and social advancements.