One of the truly excellent things about gremlins is that once they find something interesting, they COMMIT. If one becomes obsessed with something, they become an absolute authority on it. Not because they're disciplined, but because they're delightfully, gloriously, obsessive.
These creatures have the kind of expansive, exhaustive knowledge about whatever their Special Interest is that Google wishes it had.
This fella is no different. Today, on Moon Day, I was treated to an impromptu symposium on all things space:
"Actually, the Apollo Guidance Computer had just 2 KB of RAM..."
"...mate, how do you even know that?"
"I read everything in those books you got me."
"I'm glad to hear that. How do you remember it all?"
"Because Space."
His very most favouritest possession being the footprint plaque.
It looks alarmingly realistic.
Make of that what you will.