This fast food parlor occupies premises (at a corner of rue Soufflot and boulevard Saint-Michel) of a cafe A Capoulade where, in 1930-s, the founders of the Bourbaki group were meeting for work on their project, see a paper by Liliane Beaulieu, from which this contemporary photograph is taken:

To add insult to injury, the opposite corner site is held by MacDonald’s.

Nowadays, would it be possible to do mathematics in burger joint? Therefore, support Slow Food Movement!