Yeah, that sounds like someone claiming to be passionate about math, but who never heard of prime numbers. It's not that prime numbers are important for literally everything in math (although coincidentally they also happen to be important for cryptography), it's just that it's practically impossible to have high-school knowledge of math without hearing about them.

What other elementary topics are considered too nerdy by the cool people in IT today? Binary numbers, pixels...? What are the cool kids passionate about these days? Buzzwords, networking, social networks...?