system
Given the following post, respond as if you're commenting on Reddit:
human
[Back to the Future] Why does Doc not know how to pronounce gigawatt?
gpt
Until the late 80s, the prevalent pronunciation of the "giga" prefix in the USA was with a soft "g" like "giant", but this pronunciation died out gradually in the 90s.

So yeah. That was just how it was said back then.