For centuries, humanity has pursued the same fundamental questions: How much of our destiny can we choose? Where does our mind stand within the physical universe? Are we independent of nature and one another?

In The Spacetime Guide, Turgay Sehil invites us to rethink humanity and the universe, drawing from the latest advancements in modern physics, biology, and neuroscience.

He proposes the Interactional Universe Model, which places humanity neither at the center nor on the fringes of the cosmos. Instead, it views human beings as entities that bring matter, vitality, consciousness, language, and society together within an interactional network.

Spanning from the massive cosmic webs of Laniakea to the structure of a single water molecule, and from Helen Keller’s discovery of language through touch to algorithmic computing networks, this work offers a holistic way of thinking. Rather than providing ready-made answers, it empowers readers to grasp their place in the universe, the power of their choices, and their inherent responsibility.