Well, there is a case to be made for detailed explanations.
Good thing Kirk was paying attention during Sulu's mini-lecture during Shore Leave
on how guns work:
Sulu: It fires lead pellets propelled by expanding gases from a chemical explosion.
Because, this knowledge certainly came in handy a few weeks later during Arena.
Otherwise, Kirk might not have ever known people ever used chemical explosions this way, back in the day.
What would you call this dialog from Shore Leave,