Some News from a Seminar in Cambridge

On an old problems of Erdős

(h/t Michael Simkin and Nati Linial)

Here is a somewhat mysterious announcement for a combinatorics seminar lecture at Cambridge.

Which old problems of Erdős are we talking about? Here is a picture from the seminar itself.

Stay tuned (or try to test your intuition or guess in the comment section.)

Nothing yet here.