Luka Doncic had a triple-double on Wednesday and nobody batted an eyelash. Why would they? He’s already done it 20 other times this year. The second-year guard from Slovenia is putting together a historic season at just 20 years old, blowing right through a great many assumptions about his NBA ceiling along the way.



How did he get to this point? Let’s backtrack a bit.



Heading into the 2018 draft, there were three near-universal beliefs about Doncic. It’s not as easy to find people who will say these things today, but go back to June 2018, give everybody truth serum, and three consistent thoughts would emerge, even from his biggest fans:



He was one of the most talented players in the draft



He was likely to be the player who did the most right away and would be a favorite for Rookie of the Year



He might not improve a ton from there, as he was the closest thing to a finished product of the players in the draft



Well,...