Quote:
Originally Posted by iggymcfly
From ages 25-27 in what are obviously peak years for a professional basketball player, Dan Issel put up the following averages:
21.8 PP36, 9.9 RP36, 2.1 AP36, 19.8 PER, .536 TS%
Then, late in his career at age 32-34 when all scientific research will show he obviously COULDN'T have been as good, he put up these numbers:
26.2 PP36, 9.0 RP36, 2.7 AP36, 22.1 PER, .585 TS%
I think this scientifically shows that there was no improvement whatsoever from the ABA in the mid-70s to the NBA in the Dream Team era. After all, if Issel did better in the NBA at almost the halfway point in time and after the merger was fully complete than he did in the ABA, the game couldn't have evolved significantly over that time period.
In 1974-75 Dan Issel put up significantly worse statistics than every other season in his career, except his final season at 36. He was almost certainly hurt, or had some situation on his team preventing him from being as productive as normal. His PER is almost 25% less than what it was the next year. This is skewing the stats from age 25-27 that you posted down significantly.
There is also a significant difference between age 32-34 and 36 for most players. As you can see, Dan Issel's PER fell off a cliff at age 36 and it was the year he retired. Malone kept playing until he was 40, and was extremely productive at 39, and still pretty damn good at 40.
All these statistics show is that one can still be productive at 32-34. I never said otherwise.
It also shows that the league Issel played in almost certainly did not get significantly better between 1973-1975 and 1980-1982. Otherwise, his stats would have noticably dropped as he aged. I agree with you, unless there is further evidence we should consider, this probably implies the league did not get way better from 1982 to 1992 either.
However, there were only 23 teams in the league in 1982. In 1991-1992, there were 27. The average talent level in the league may have dropped in that decade (I don't think basketball improved by more than ~17.4% to offset this in only 10 years). However, there were 4 more teams, so there was more talent to choose from. Chances are the elite were about the same or got better.
Of course there is going to be variance between decades, and I think it's pretty clear that having Jordan/DRob/Barkley/Malone/Magic/Pippen/Ewing/etc. all in their prime at the same time was an extreme outlier, so the elite in '92 were quite a bit better than you'd expect normally if choosing one year at random.
Quote:
Originally Posted by dkgojackets
I wonder if you could find the right chain of guys who posted better seasons in their 30s than mid-20s to scientifically prove that the quality of basketball play has not changed in the past 70 years
Quote:
Originally Posted by iggymcfly
It would be trivial to do it going forward from Issel to now, and you can go back another decade or so with Lenny Wilkens, but you can't do it back to the '50s, just because pretty much no one played into their mid-30s until the late 60s/early 70s.
This is true, and chance are a big reason for this is that the NBA was evolving a lot more rapidly prior to the 60's. As you aged back then you couldn't keep up with the younger, more athletic, and skilled players. Nowadays your experience can help offset your decline in athlecism to a point, because the league isn't improving significantly between eras.
If you remember, earlier in the thread, we noted that the track times you posted seems to plateau around 1960. This may be true of professional basketball as well.
Quote:
Originally Posted by vhawk01
Its just the law of the contrapositive guys, pretty basic stuff really
Now you're getting it!