But to put a pin in this whole thing...are you contending that there is likelihood that Kareem averages 35 points and 17 boards in 1985?
The game was faster in 1970 than in 1985.
On average, there were 7800 FGAs and 4200 rebounds in 1972 versus 7300 FGAs and 3600 rebounds in 1985. You'd need to adjust down slightly for pace.
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Kareem's final top level season was in 1980. He last MVP caliber year. By the time he faced Moses Malone in 1983, he was already 35. By the time LA beat Boston for the first time, Kareem was 38. When he won his last title, he was 41.
It would be a mistake to compare his Lakers years from 1981 onwards to his past and consider them the more indicative of Kareem's true capacity during his prime. They weren't.
His best years where with the Milwaukee Bucks and his early LA Lakers seasons. Kareem was a lot more active in those days, as a rebounder and as a help defender, than he was during his time alongside Magic Johnson. Just youth and athleticism. And gradual decline of both.
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I firmly believe Kareem would have put up around 30 points a game and 14-15 boards a game, at his peak, in the mid-1980s if prime was transported to that time.