Which retail technology advancement has most significantly transformed audience analytics in performing arts venues in the past decade?

The intersection of performing arts and technology has revolutionized how theaters, concert venues, and dance companies engage with audiences. Modern retail technology advancements have transformed ticketing systems, audience analytics, and the overall patron experience. This trivia question explores a significant tech innovation that has changed how performing arts venues understand and respond to their audiences.

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Facial recognition technology that tracks emotional responses during performances
Mobile app heat mapping that analyzes crowd movement patterns in venues
AI-driven predictive analytics systems that forecast ticket purchasing behaviors
Blockchain ticketing systems that create immutable audience demographic records