Of course Cook knew, Trump isn't a complicated man. That's why the gift looks even more like a joke at Trump's expense, and a wink to everyone else. Cook could've gifted him a diamond-encrusted iPhone or some shit like that, but instead it was a custom useless piece of junk that seemed like a parody of both Apple's aesthetic and Trump's taste. Cook even awkwardly put the disc onto the base before reverently displaying it on the table. You can see in Trump's face that even he might've questioned what the fuck was offered to him — or he was holding in a huge fart, no way to know.