What is this? Mississipi Mound builders? Lost Mayan Temples? The lost source code of Half-Life 3? Nicholas Cage's National Treasure 4? Whatever it is, its sill

What is this? Mississipi Mound builders? Lost Mayan Temples? The lost source code of Half-Life 3? Nicholas Cage's National Treasure 4? Whatever it is, its silly enough that Nat Friedman feels like people will ridicule him if he actually says it out loud. That, or JJ Abrams style mystery box storytelling is a skill mastered by tech founders.