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In the double-slit experiment, particles like electrons exhibit wave-like interference patterns when unobserved, but collapse into particle-like behavior when measured. This occurs even with minimal interference from detection methods, like delayed-choice experiments, where the choice to observe is made after the particle’s path. While equipment can influence outcomes, the effect persists in setups designed to reduce such interference, suggesting observation itself (whether by consciousness or measurement) plays a role. What specific experiments or evidence support the idea that it’s purely equipment interference? Are there cases where the effect occurs without physical interaction from the detector?