"Westworld" has been a hit for HBO, with the new sci-fi thriller ctually surpassing the ratings of the blockbuster "Game of Thrones" at the same point in its run. Based on a 1973 movie written and directed by Michael Crichton, the series tells the story of a Western-themed amusement park where guests can act out their darkest fantasies without worrying about the consequences. However, in the film, there was also a Roman World and a Medieval World, an intriguing but, unfortunately, expensive concept.

Enter "Game of Thrones" author George R.R. Martin.

As Entertainment Weekly details, Martin recently offered a suggestion over a dinner with "Westworld" showrunners Jonathan Nolan and Lisa Joy: Basically, instead of a generic Medieval World, introduce a Westerosworld, featuring dubiously sentient robot versions of the knights and nobles of "Game of Thrones."

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While that would undoubtedly be a treat for fans, the idea would also solve a budgetary problem, as the "Westworld" actors could pay a visit to the "Game of Thrones" sets and film their scenes at Winterfell or King's Landing, alongside Sansa Stark and Tyrion Lannister.

Joy loved the idea, but as a "Game of Thrones" fan, she had one caveat. "I need to be believe that dragons are real,” she said. “I want them to be a real thing. So as much as I love George, I can’t lose that for myself!”

Of course, Martin having a great idea doesn't automatically make it real. For this to happen, legions of lawyers would have to negotiate terms, and schedules would need to be coordinated. But hopefully some HBO executives are paying attention.

"Westworld" airs Sundays at 9 p.m. ET/PT on HBO.