What is russell's paradox? Assume I have no prior knowledge of mathematicians or logic.
Russell's paradox is a fundamental problem in set theory and mathematical logic. It shows that naive set theory leads to contradictory statements.

The paradox arises from considering the set of all sets that do not contain themselves. Such a set appears to have a self-reference that leads to a contradiction:

- If the set of sets that do not contain themselves contains itself, then it violates its own definition (it must not contain itself)
- But if it does not contain itself, then again it violates its own definition (it should contain all sets that don't contain themselves)

This contradiction shows that the initial assumption (that such a set exists) must be wrong. Russell's paradox exposed contradictions in naive set theory and led to the development of more rigorous axiomatic set theories.

In short, it highlights the need for careful treatment of self-reference in mathematics to avoid logical paradoxes. Let me know if you would like more details.
So, who shaves the barber?