Most of Harvard’s Science and Cooking Lectures are first come, first served, so to speak. But, you needed a ticket for Tuesday’s return of superstar Spanish chef and modernist Ferran Adrià of elBulli, who talked about “The New Culinary Think Tank – el bulli 2.0.” And they were scooped up a few days after they became available.

But, you can watch this video of last week’s talk: