I think hipsters might be about half the reason flamethrowers were invented.
"The concept of throwing fire as a weapon has existed since ancient times. Early flame weapons date from the Byzantine era, whose inhabitants used rudimentary hand-pumped flamethrowers on board their naval ships in the early 1st century AD (see Greek fire). Greek fire, extensively used by the Byzantine Empire, is said to have been invented by Kallinikos (Callinicus) of Heliopolis, probably about 673. "
You hem me in -- behind and before;
you have laid your hand upon me.
Such knowledge is too wonderful for me,
too lofty for me to attain.