Carl Sagan’s association with the term “billions and billions” is so popular that there’s actually a term called sagan which is synonymous to billions and billions. Sample usage: “There are sagans of stars in the Milky Way”. Ironically, although he often mentioned millions, trillion and miscellaneous -illions of things, Carl Sagan never actually used the term “billions and billions” exactly in Cosmos: A Personal Voyage. It was actually popularised by the comedian Johnny Carson who parodied Sagan. Luckily, Sagan took it to be good-natured humor and titled his last book Billions and Billions.
Here’s a collection of all the ‘-illions’ mentioned in Cosmos: A Personal Voyage:
Astrophysicist Neil deGrasse Tyson faced a similar situation with the hilarious “We got a badass over here” meme nowadays. The meme is probably based on an interview he gave to the Youtube Channel BigThink, where he discussed Isaac Newton and his achievements. Once again, like Carl Sagan and the term billions and billions, Tyson never actually used the phrase “We got a badass over here” in the interview. It’s kind of hilariously unfortunate, in my opinion. 😀
Here’s the original interview, where Neil deGrasse Tyson discussed Isaac Newton:
And here’s a video of Neil deGrasse Tyson discussing the meme, it’s hilarious: