ELI5: Explain Like I'm 5
Examples: public property, xor cipher, bayes filtering, inception, near miss

Trilemma

A trilemma is like a three-sided puzzle. It usually has three different options, and you have to choose one. For example, imagine someone has three pieces of candy. She has to choose which one to eat. That's a trilemma! In other words, she can only pick one candy, and she has to make a choice between the three.