Well, as a new years resolution I decided to go without coffee or caffeinated drinks.  It is now just about a month without caffeine, or at least with nothing like the dose previously consumed.

I am not sure what effect this has had on my mathematics.

Paul  Erdös once remarked “in Hungary many mathematicians drink strong coffee”.

Alfréd Rényi stated “a mathematician is a machine which turns coffee into theorems”.

So, I think we can claim a link between coffee and mathematics!

Anyhow,  as of February I will be doing more mathematics in coffee houses.