Science

What does the double-slit experiment tell us about the nature of reality?

What is the role of an observer in this experiment?

Please provide a brief answer to this question.

If the act of observation changes the particle, what does this imply about the nature of reality and the role of an observer in it? Provide a brief answer.

If the observer plays an active role in shaping reality at the quantum level, what does that reveal about the true nature of the observer?