To expand on that ^^^. If Patrick Zevo (from the movie Toys) was a cyclist:

"I can't even ride. The elements keep touching. I like Cat 1 bikes, I'm a Cat 1 man, I want a Cat 1 bike. I want my aluminum front triangle to be quarantined! I like a little fortress around my seat tube so the Carbon doesn't invade my Aluminum and cause mixing on my bike! I HATE IT when different elements touch! I'm a Cat 1 man, you understand that? And don't let your carbon and aluminum touch either, please?