なるほどねー。今日のライブ聴いている

> Why 73 questions?
It’s 73 because I initially planned for 100 questions, but pulling that off in one take (yes, these are really shot in one take) felt a bit risky. So, I settled on 73 because it was a prime number, looked unusual, and had great SEO.

https://fashionweekdaily.com/the-guy-behind-vogues-73-questions-explains-how-he-started-it/