In the previous post, we explored how our inner experiences—feelings, beliefs, and states of consciousness—actively participate in the reality we inhabit. This idea, although sometimes rejected by a traditional scientific-materialist view, finds interesting echoes in modern physics.
The question we ask today is: is there any scientific basis suggesting that the observer participates in what is observed? If so, what does that mean for our understanding of consciousness, reality, and our relationship with the world?
The double slit: consciousness and quantum phenomenon
One of the most discussed pieces of modern physics is the double-slit experiment, originally devised to explore the nature of light and particles.
In essence, when a particle (such as an electron) is fired through two slits toward a screen, the pattern that forms depends on whether or not there is a detector observing which slit it passed through:
Without a detector: a wave pattern appears (interference).
With a detector: a particle pattern appears.
This phenomenon suggests that the act of measuring/observing alters the experimental result.
A good explanation (and review of studies) can be found in:
Stanford Encyclopedia of Philosophy — Double Slit Experiment
https://plato.stanford.edu/entries/qm-double-slit/
And a more technical review:
Feynman Lectures on Physics — Vol. III, Chapter 1
https://www.feynmanlectures.caltech.edu/
Important: physicists are not saying that the human mind “creates” reality. What they do show is that the act of observation is integrated into the observed phenomenon, at least at the quantum scale.
Quantum fields and non-separability
Quantum physics also reveals that particles can be correlated even when they are separated in space—a phenomenon known as quantum entanglement.
This challenges the classical intuition that objects are completely separate from one another.
A peer-reviewed study explains:
“The observations of entanglement demonstrate correlations that cannot be explained by classical theories of locality alone.”
(C. H. Bennett, Physical Review Letters, 1993)
Accessible summary:
Nature — Quantum entanglement
https://www.nature.com/subjects/quantum-entanglement
Although these studies do not directly speak about “consciousness,” they show that reality is not as local and separate as it once seemed, opening space for more relational approaches.
The physics of the observer: which interpretation?
Within the scientific community, there is no single interpretation of these phenomena. Some of the most discussed interpretations include:
Copenhagen interpretation
Observation “collapses the wave function.”
It does not specify who or what the observer is—only that measurement matters.
Many-worlds interpretation
Every possible outcome occurs in a parallel universe.
Relational theories
The state of a quantum system only makes sense in relation to another system.
None of these interpretations literally claim that your personal thoughts “create reality,” but they do challenge the idea of a reality completely independent of the observer.
Consciousness and science: meeting points and limits
It is important to be clear:
Quantum physics does not prove that the mind “creates” reality.
What it does show is that the interaction between observer and observed is part of how the phenomenon manifests.
In other words:
✔ Absolute objectivity is impossible at the quantum level.
✔ The participation of the observer is an experimental fact.
✔ The interpretation of what that means remains open.
Beyond science: contemplative implications
If we bring these ideas into everyday human experience, we can say with humility:
Consciousness is not completely separate from what it experiences.
Not because physics tells us that thoughts determine objects, but because phenomena cannot be fully understood without recognizing the observer–observed interaction.
This opens an invitation:
Instead of thinking of a separate mind facing a fixed world, we can begin to see perception as a dynamic relationship.
Thus, traditional spirituality and certain frontier experiments find common ground with modern science:
reality is not completely independent of those who observe it.
Practical implications: living as conscious observers
If modern physics shows us that the observer is not completely independent from the observed phenomenon, and if psychology and neuroscience confirm that our perception is shaped by our beliefs, expectations, and internal states, then a practical question arises:
How do we live knowing that we participate in the experience we perceive?
Attention modifies experience
In cognitive psychology, we know that attention is not passive. Directing attention changes how we process information.
Studies on selective attention show that:
We perceive what we focus on.
Our brain actively filters reality.
Reference:
Posner & Petersen (1990). The attention system of the human brain.
Annual Review of Neuroscience.
https://doi.org/10.1146/annurev.ne.13.030190.001321
Practice:
Observe where you place your attention during the day.
On conflict or opportunity?
On fear or possibility?
Attention is a concrete form of participation in experience.
Expectation and the placebo effect
The placebo effect is one of the best-documented phenomena in medicine. Expectation influences the body’s real physiological response.
Reference:
Benedetti, F. (2009). Placebo Effects. Oxford University Press.
Wager & Atlas (2015). The neuroscience of placebo effects.
Annual Review of Neuroscience.
https://doi.org/10.1146/annurev-neuro-071013-014927
This does not mean that “everything is mental,” but that perception, expectation, and context activate measurable biological processes.
Practice:
Observe the internal narrative you are holding.
Beliefs do not only interpret reality; they can modulate the organism’s response.
Emotional coherence and physiological regulation
Research on heart coherence shows that emotional states such as gratitude or calm produce more organized physiological patterns.
Reference:
McCraty et al. (2009). Impact of a workplace stress reduction program on blood pressure and emotional health.
Journal of Alternative and Complementary Medicine.
Beyond metaphysical interpretations, there is evidence that internal state influences nervous system regulation.
Practice:
Before reacting, regulate.
Breathing consciously for 3–5 minutes can change the quality of the experience.
Neuroplasticity: experience shapes the brain
Neuroscience has shown that the brain changes according to repeated experience.
Reference:
Draganski et al. (2004). Changes in grey matter induced by training.
Nature.
https://www.nature.com/articles/427311a
The repetition of certain mental states strengthens specific neural circuits.
Practice:
The question shifts from “What is happening to me?” to
“What am I practicing internally every day?”
A conscious synthesis
Quantum physics does not prove that the mind creates external reality.
But psychology and neuroscience do show that:
Attention influences experience.
Expectation modulates biology.
Emotion affects physiology.
Repetition shapes the brain.
Perhaps the practical insight is not that we “create the universe,” but something simpler and deeper:
We actively participate in the way we experience reality.
And if we participate, then we also carry responsibility.