Why do people say mega?

Why do you think people often use the term "mega" when discussing cryptocurrency and finance? Does it simply serve as a colloquial way to emphasize the significant size or value of something, or does it hold a deeper meaning within the industry? Is there a historical context behind its usage, or is it just a popular trend that's caught on? And how does the use of "mega" impact the perception of the cryptocurrency and finance world among those who are not familiar with the terminology?