How many years until Luka Doncic enters the GOAT conversation?

Dallas Mavericks superstar Luka Doncic is just in his third year in the NBA and analysts are already raving about him. They are all in agreement that Doncic will be the next face of the league in the next few years. The Slovenian has it all with the Mavs: talent, smarts, looks, the clutch gene, and a competitive spirit only special people possess.