Especially for a conference, you bring the people with the best talent. You’re not trying to meet a quota. For a conference, you’re trying to bring in the people who have the best stories to tell, that are going to be shared with a large audience who’s going to appreciate it and learn something from it. So, our first criterion for selecting a speaker is that: Who is going to impart the best talk, going to share the best knowledge, going to make people see things differently?