The Universe Tried to Hide the Gravity Particle. Physicists Found a Loophole.

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• !Understand the resonant mass detector approach: cooling a metal cylinder to near absolute zero creates quantum phonon states that serve as macroscopic quantum targets for graviton interaction
• !Learn the critical distinction between detecting a graviton event and formally proving gravitons exist — coincident detection with LIGO is strongly suggestive but not definitive proof
• !Track development of optical Weber bar experiments proposed by Ralph Schutz, which may be feasible with present-day interferometric tools