Roger Penrose proposes a conscious observer doesn’t cause wave function collapse. A conscious observer is caused by wave function collapse.

Considering all of the above, one question remains: is light a wave that sometimes looks like a particle, or a particle that sometimes looks like a wave? There is disagreement about this.

A particle’s state spreads out like a wave, peaking where the particle is likely to be found. When you measure its position, this spread-out state, known as a wave function, transforms into a single ...

This ‘wave–particle duality’ embodies many of the central conceptual mysteries of quantum mechanics that are unresolved to this day.

A new theory suggests that gravity could possibly be the result of entropy. If true, this would mean that everything in the universe would fall apart if it all remained unchanged.

The double-slit experiment was designed to investigate whether light is a wave or a particle. It is one of the most famous and weirdest experiments in physics.

A new theory suggests gravity could possibly be the result of entropy—which would mean everything in the universe would fall apart if it all remained unchanged.