Who is the greatest player in the history of world basketball?

At present, it is recognized that Jordan expresses his personal view that the greatest point guard should be confined to a certain position. I think the greatest point guard should be Magic Johnson, the shooting guard is Michael Jordan, the small forward is Dr. J Owen, and the power forward is Bird. A center said that Chamberlain's average of 100 points and 55 rebounds was really terrible, but Chamberlain's defense in that era was "shy". Mikan was the dominant center a long time ago. He was the bully, but to be honest, the defense at that time was not as good as that in the Chamberlain era, so with a little talent and hard work, Mikan could become Mikan and be passed on. The next one is the dream Olajuwon. His dream step is necessary (ecstasy). I didn't recognize him when he teased the captain of the navy. And O 'Neill, who just retired a few days ago. Although O 'Neill is a rare genius in talent, physical fitness, basketball IQ and humor, his childlike innocence finally made him lose the title of the first center in history. O 'Neill is too playful and not motivated (just like Howard). Finally, bill russell is a master of defense. A few decades ago, Russell's defense was completely comparable to that of current NBA stars. His defense is impenetrable, so the center's choice of Russell is just a personal opinion. If you disagree, don't take it to heart.