This guys both have controversial characters in blockchain community each one for its own reasons, but what could come out from their lunch?
What could Sun need so bad from the guy that he payd 4.5m?
Probably explain how blockchain works and show him some examples . Buffet told that Bitcoin is rat poison , but Justin will proove it's not

If you take a look at Warren Buffet investments , then you will see that he missed Apple , Uber , Amazon and even more oportunities , so he is not always right

He ofcourse is rich , but there is 1 more investment he will not miss i think