english: Facebook’s David Marcus highlighted this point at this year’s F8 concert when he said, “When you come to think of it, Messenger has become the de facto Yellow Pages without having any phone numbers.
non_english: David Marcus Facebook nyorot titik iki ing konser F8 taun iki nalika ngandika, "Nalika sampeyan ngira, Messenger wis dadi Yellow Pages de facto tanpa nomer telpon.