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An intriguing feature that could enhance movie databases is a metric for a movie's non-Markovianity, which refers to how difficult it is to comprehend the plot when joining the movie later. This metric is expected to be higher for films with complex and intricate storylines, and lower for genres such as lighthearted comedies.

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Technological uncanny valley - an unsettling experience when faced with a moderately outdated piece of technology. (There seems to be a sweet spot as the feeling is not elicited by slightly or significantly outdated tech.)

cities in Ukraine than in your country. :(