Reality and consciousness are studied across neuroscience, physics, philosophy, and cognitive science to understand how subjective experience arises and how it relates to the physical world. While many aspects of perception and awareness are well described at neural and behavioral levels, fundamental questions remain unresolved.
Scientific inquiry into consciousness focuses on observable mechanisms, measurable correlates, and testable models. However, certain questions persist where explanations remain provisional due to conceptual limits, incomplete data, or unresolved theoretical frameworks.
The topics collected here examine scientifically grounded questions about perception, awareness, and the nature of reality, emphasizing current understanding while acknowledging existing uncertainties.
Nature of Reality
Scientific models describe reality through physical laws, mathematical structures, and observable interactions. Some hypotheses explore whether perceived reality fully reflects underlying physical processes or whether deeper explanatory layers may exist.
Is Free Will an Illusion?
Can Artificial Intelligence Become Conscious?
Consciousness and the Brain
Conscious experience is strongly correlated with neural activity, yet the precise relationship between brain neural mechanisms and subjective awareness remains incompletely understood. Research continues to examine whether consciousness is entirely dependent on biological processes.
Can Consciousness Exist Without a Brain?
Can Humans Ever Upload Their Minds?
What Happens to Consciousness After Death According to Science?
Perception of Time and Self
Human perception of time, selfhood, and continuity is shaped by neural processing rather than direct measurement of physical time. Variability in perception reveals how experience is constructed rather than passively received.
Why Does the Brain Perceive Time Differently?
Why Do We Feel Watched When No One Is There?
Can the Brain See Things That Aren’t Real?
Altered and Constructed Experiences
Certain mental states demonstrate that perception can diverge from external reality while still feeling subjectively real. These experiences provide insight into how the brain constructs conscious awareness.
Why Do Hallucinations Feel Real?
Scope of This Hub
The material linked within this hub is presented for informational scientific reference. Where explanations remain incomplete, uncertainty reflects current theoretical, experimental, or methodological limits rather than speculative interpretation. As scientific research advances, models of consciousness and reality may be refined or revised accordingly.