You gotta realize you need a pool of people in order to have a discussion about GOAT. The NBA started in 1946. Up until 1956, when the league was 10 years old, the pool wasn't deep enough to have as serious discussion, but I assume everyone back then considered Mikan the best. 4 championships in 6 years, 3 scoring titles. No real competition. It was a given, but the league was in its infancy.
Now, 1956 some real talent starts to come in with bill russell and he immediately leads the celtics to a title his rookie year and then 8 more over the next 9 years. 1959 you get wilt and 1960 you get oscar. These 3 are the holy trinity of players of that time. They were either putting up ridiculous stats (wilt and oscar) or winning at an alarming rate (bill). Mikan couldn't hold a candle to these 3. His legacy is now in the background. Russell retired in 69, wilt in 73 and oscar in 74. So up until that time, it's debatable who's the goat depending on what you valued. From what i've read, although wilt was mythical status, bill was considered the greatest due to rings. At this point the league is about 30 years old with 3 main players in the convo with a young kareem on the come up and threatening to enter the convo.
By 1975, kareem's got a ring, averaging 30/15, and has 3 MVPs and by 1979 he's got 5 MVPs, but with only 1 ring, his individual success isn't putting him above bill. He wasnt leading his team to championships anymore and he wasn't generating any excitement for the game. The league was considered dead and the games were on tape delay. But now there are 4 serious players in the discussion.
Enter the 80s. Now you have a new breed of exciting players with bird and magic, who changed the image of the league, increased tv ratings, and created a rivalry that lasted throughout the decade. Both were 6'9"/6'10" and could do it all. The game had never seen players like them before. And not only were they exciting, but they were winners. Every finals of the 80s either consisted of the lakers or the celtics. So now you have 2 more players added to the convo with a young mike on the comeup.
So to sum it up, before mike, you had
Bill
Wilt
Oscar
Kareem
Magic
Bird
All in the conversation. No real consensus. Old heads swore by bill, wilt and oscar. The newer generation saw magic and bird as the GOATs.
Mike came in, shut the door on the convo and never looked back. He's even the GOAT collegiate player
