The fireside chat concluded with a lighthearted moment as the two executives swapped jackets, in a throwback to the viral meme from earlier ... gifted Zuckerberg a new leather jacket he had ...

From Balenciaga, to Acne Studio, to Gucci, all the big design houses have been championing a new silhouette ... (in meme-form) this week. Check it out: The giant pink puffer jacket look ...