[JonasJSchreiber]

I love the author's humorous descriptions

> Metalization, he explained, is the process by which aluminum is deposited on both sides of the film. This made sense in theory, but how could aluminum go from being not on the film to being on the film without at least some Scotch tape? “They evaporate aluminum and deposit it on it,” said Mr. Shetty. This made sense in theory, but how could aluminum be evaporated? “It’s a very, very thin layer. They put it in a vacuum chamber, then evaporate the aluminum,” said Mr. Shetty. “With heat,” his son added. “What are they evaporating out of it?” I asked. “Aluminum,” said Mr. Shetty. I have no idea how humans figured out how to do that, or why it occurred to them to even try, but it sounds expensive.