Since rewatching Psych, I've been thinking about how weird and arbitrary Shawn's interests are. Sure, late 2000's writing had something to do with it, and maybe a bit of Henry and Gus's influence, but hearing Shawn be so vocal about how he hates certain popular things or (more importantly) refuses to give them a chance BUT at the same time knowing so many pop culture references, it got me thinking.
What if the reason Shawn has so many pop culture references on hand is because of his eidetic memory, and he doesn't actually have as much of an interest in pop culture? Throughout the show, he actively avoids getting roped into big interests and franchises (see: comic books, soap operas, etc.) despite the fact that he genuinely seems excited once he's part of it. In fact, we don't get to see a lot of Shawn's interests at all unless it's based on an idea.
Take being a bounty hunter, for example. According to him, he's obsessed with the idea, but he doesn't make many references to an actual bounty hunter show or franchise. Instead, he just remembers the one bounty hunter he saw as a child and maybe references a movie or two. Because once he remembers something, he's never going to forget it, or at least not for a very long time.
That's why he thinks in references. Everything is a reference if you have a good enough memory. Everything reminds you of something. If Shawn hears someone make a Spock reference, it's in his repertoire forever. But he wouldn't be caught dead watching the shows or movies because that's just too much information. Why on earth would he endure that?
Of course, it also intertwines with his ADHD. He has bouts of energy and trouble focusing. He can't sit still to save his life, and he hyperfixates...or he would if his memory didn't make him averse to it. So if he doesn't want to hyperfixate on an information-based interest, then what does he hyperfixate on? Physical activities. Instead of learning about his favorite daredevil, he tries to be one himself. When he learns about oil rigs, he doesn't get a book from the library. He tries to find oil in his backyard.
This is also where he and Henry differ regarding Shawn's "potential." Henry is correct when he talks about Shawn's "wasted" potential, but he doesn't understand the toil of having this eidetic memory and ADHD. Here's what I think happened: Henry probably noticed Shawn's stellar memory at a young age, realized he has a gift, spoke with his wife about her eidetic memory, learned that you need to challenge your child's eidetic memory at a young age or it'll go away, started the hat game to make it fun and exciting, but then Shawn's ADHD appeared. Suddenly, it made him much harder to raise (because let's be real, Shawn was not an easy child.) Henry didn't know what he was doing anymore, and since it was the 80's, he didn't have the resources to properly understand his kid's behavior, so he tried to find a common interest, and started training Shawn to be a detective "because kids love cop shows." But Shawn struggled to stay attached to one single interest, and when he grew up, he stopped trying to articulate his problems because his mom (the only person who remotely understood his struggles) left, and he blamed his dad for it.
And academics? Those are a joke because what is the point of studying if he already remembers everything? Until, of course, he needs to apply it to a problem-solving test or writing an essay. Suddenly, he's memorizing a math teacher's answer sheet and copying Gus's report.
Yes, Shawn could have been a great cop. He could be an amazing scientist or anything really. He could have been a national spelling bee champion like Gus wanted to be. Even 15 years later, Shawn remembered exactly what word Gus messed up, how to spell the word, and what letter he made Gus slip up, but he didn't want to be on that stage with Gus because that requires so much learning. And so much time. And so much memorizing. And he refuses to sit still for that long when he knows that overloading his head is going to give him migraines.
Also his "I've heard it both ways" probably comes from the fact that people with eidetic memory can still make lots of mistakes if they don't actively commit something to memory. If Shawn only overhears something, he'll still naturally try to fill in the gaps like everyone else, but because he's so confident in his memory, he just believes what he remembers to be true, leading him to repeat incorrect information with confidence. That could also be why some of his references are incorrect due to mixed-up homophones.
Anyway, this post was supposed to be about how Shawn is just a walking movie reference because his memory won't let him forget quotes, but then I fell into a rabbit hole of the negative effects of having an eidetic memory as a child, and I am very passionate about how Henry actually tried his best, and people need to stop calling him a horrible parent. Love y'all. Let me know what you think.