[cebert]

Do you have a source for that? I don’t see what impact consumer email software would have with the composition of the heat shield.

[anonymars]

I believe this one would fall under "incongruity theory"

https://en.wikipedia.org/wiki/Theories_of_humor#Incongruity_...

[esafak]

He's saying it's bulky junk that's best torched.

[john_strinlai]

its a joke, no sources required