In Catch Me If You Can, Frank Abagnale teaches a whole semester and no one ever figures out he's not a real teacher. Later when he's caught, he's asked how he could teach the class when he doesn't know anything about advanced sociology. 

Abagnale explained he only had to be one chapter ahead to teach the class. 

Dev. Writing "The Marketing Compass" newsletter, themed around marketing from first principles to help fellow devs learn to attract users and customers

You don't have to be the most knowledgeable person in the world to teach - you just have to be one chapter ahead of the people you're helping.

^ excepts from Expert Secrets that help me fight imposter syndrome as a writer

“Good casts: eclectic, quirky, witty” - @botornot

Good to know, I'll start thinking of lessons from his life as fables then 😄 still handy to take what's useful and inspirational

Your point about being one chapter ahead still stands, but fwiw unsurprisingly Abagnale lied about his lies

https://nypost.com/2023/03/13/catch-me-if-you-can-conman-frank-abagnale-lied-about-his-lies/