Another is that it is a very unusual place. All its lectures are open to the public, and they are supposed to showcase research in progress. 2/
en.wikipedia.org/wiki/Coll%C3%A…
Lectures are made available online, and they are not supposed to be repeated -- apparently many professors find this too ... 3/
And the final challenge for me is that lectures have to be in French, but after spending the academic year 2017-8 in Paris I found that (with effort) I could do this. 4/
The reward if it all works is to become a public intellectual in France. What could be cooler than that? 6/