Warning: This story contains spoilers for Westworld.

Westworld’s mysterious premise—a futuristic theme park where people can do whatever they want with lifelike robot “hosts”—has made the HBO series a hotbed for fan theories. Based on the 1973 Michael Crichton film, Westworld’s setup has given fans a number of hairpin twists and turns. As the first season nears an end, one thing is clear: some of the show’s many mysteries aren’t even close to being tied up. Here’s a look at 11 popular fan theories and their likelihood of being proven true by Sunday’s season finale:


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