What's the Venn Diagram?

"I got lucky I managed to figure out it with enough introspection of what that is. And also having the humility to say like I just said I'm not the best database architect in the universe," he says. "But you put all these three don't talk too much here." The author and his wife have written a book collaboratively, which they did by writing each other's sentences before signing off on their own work.