Blog 10 – When the observer defines their reality

There is a moment, almost imperceptible, when looking becomes creating. In our astronomy experiences in rural accommodations in Catalonia, we often explore this frontier: the moment when consciousness is no longer just a spectator of the universe but becomes an active part of its unfolding.

The telescope is not only an optical instrument; it is a mirror. When we observe the deep sky, we are also observing ourselves. Every galaxy, every nebula reflects the mystery of existence.

Quantum physicists had already suspected this: reality is not a fixed structure but a field of possibilities that the observer collapses at the moment of perception. The simple act of looking conditions existence. Perhaps the universe is not an external stage but a constant dialogue between matter and consciousness.

The Swedish Academy of Sciences awarded the 2022 Nobel Prize in Physics to Alain Aspect, John F. Clauser and Anton Zeilinger “for experiments with entangled photons establishing the violation of Bell inequalities”. This recognition confirms that the observer can play a fundamental role in how reality manifests.

The double-slit experiment is one of the most fascinating demonstrations. When a beam of electrons or photons passes through two openings, it creates an interference pattern, as if each particle were a wave passing through both slits at the same time. However, when an observer attempts to measure which slit it passes through, the pattern changes and the particles behave like solid objects. The act of observation alters the result. Reality seems to wait for the gaze to decide itself, as if consciousness were part of the experiment.

In our astronomy workshops, participants are invited to explore this idea through direct experience. Beneath the silence of a Starlight sky, far from light pollution and often from rural lodgings surrounded by nature, people can feel how observation transforms the perception of time, self and totality. When the mind becomes still and only presence remains, what we see out there somehow seems to look back at us.

Perhaps the true scientific act is not discovery but listening. Not dominating nature but allowing it to reveal itself. Every astronomical observation is ultimately an act of humility: recognising that the light reaching us also defines us.

When the observer defines their reality, the universe ceases to be distant and becomes intimate. A place where physics and consciousness intertwine, and where every gaze becomes a creation in itself.

Perhaps that is why many people discover, during a telescope observation of the night sky, that looking at the universe is also a way of looking inward.

If you would like to experience this yourself, discover our astronomy experiences with telescopes in rural accommodations in Catalonia, where science, cosmos and territory meet under the same sky.

Kílian Víndel 11/11/2025