Ask HN: Who is smarter than you that you listen to what they have to say?

I am trying to figure out how business and world economics are going to evolve in the next 3, 5, 10 years.I am pretty smart, but I am surely not the smartest; and I enjoy listening to what Peter Thiel, Alex Karp, Dario and SamA have to say.Who is on your short (or long) list?