Westworld and Westeros: two peas in a pod? Apart from their names, both places have a penchant for violent delights and dastardly deeds—and apparently, George R.R. Martin thought a tie-in between the two could be fun. The A Song of Ice and Fire author even casually floated the idea of incorporating a Game of Thrones park into Westworld itself, suggesting it to Westworld show-runners Jonathan Nolan and Lisa Joy. Unfortunately for eager fans, they did not take the bait.

According to Entertainment Weekly, Martin brought the idea up over dinner. In the original Westworld film, there’s also a Roman World and a Medieval World, where park-goers can experience similar not-so-cheap thrills in different settings. Instead of medieval world, the logic goes, perhaps the TV version could have . . . Westeros World?

“We love George,” Nolan said, adding later, “He’s a lovely guy and a stunning writer, and it’s flattering he would encourage a crossover. We should be so lucky.”

But, as Joy said, there was just one problem with the idea: “I need to be believe that dragons are real. I want them be a real thing. So as much as I love George, I can’t lose that for myself!”

As E.W. notes, there are more than a few other concerns one could bring up with the idea—but either way, leaving it as an idea seems like the right decision. Even for HBO, this is for the best; after all, if you’re trying to transition millions of viewers from one property to another, it’s probably best not to remind them how much they’ll miss the former once it’s gone for good. Also, imagine the indignity that would be heaped upon a host version of Sansa—hasn’t she suffered enough?