Neil deGrasse Tyson assesses the physics of Game of Thrones season 7

Now that Game of Thrones season 7 is over and done, people are now talking about the important topics. For example, famed scientist Neil deGrasse Tyson is weighing in on the physics of the show through Twitter.

First, Dr. Tyson made sure spoiler-phobes were cleared out of the room before beginning the lesson.

So are the things that happened in season 7 physically possible? For the most part, Tyson gave the season a passing grade, except for one part that, to be fair, left a lot of us scratching our heads:

I mean, how else did the Night King get those chains around Viserion if the wights didn’t swim down and attach them? Maybe Jon was just lying to Euron when he said that wights couldn’t swim, on account of Euron being a huge jerk.

Well, yes, Neil deGrasse Tyson, pulling the dead dragon out of that lake would have been much easier had the Night King thought of renting a crane or two…or maybe using those giants from the season premiere. Don’t think we don’t remember them, HBO!

Next, Tyson addressed the physics of dragon flight. Surprisingly, he approves.

And what of the blue fire Viserion blew at the end of the season?

The real head-scratcher is how fire can break through the Wall when it’s protected by thousands of years spells, not how hot it is.

Finally, Tyson took a break from physics to give us a lesson in courtly etiquette.

Thank you, Neil deGrasse Tyson; we hadn’t picked that up.

Next: Is Game of Thrones filming multiple endings? Nikolaj Coster-Waldau says no

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