# Unsolved problems - recognised


## https://en.wikipedia.org/wiki/Lists_of_unsolved_problems

- not in psychology?

- https://en.wikipedia.org/wiki/List_of_unsolved_problems_in_neuroscience

## https://en.wikipedia.org/wiki/List_of_unsolved_problems_in_economics

- https://phantran.net/what-we-do-not-know-10-unsolved-problems-in-finance/

8. What Is the Value of Liquidity?

- [Mr. Market’s Mind: Finance’s Hard Problem](https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3512043)

# Parents

* Revolutions of 21st century - T&M
* Science⏎