jpengland wrote:Hes right.
Genetics
Genetics: Evolution doesn't occur nearly as fast as you think.
jpengland wrote:training advancements, analytics
When you're comparing Player A to Player B, you adjust for environmental factors. A Kareem born in 1998 would take advantage of those things. A Durant born in 1960 would not be able to utilize.
If you don't believe in adjusting for environmental factors what you're really saying is Give Player A all of the advantages of the 21st Century and they'll be better than Player B born in the 1960s which is true but doesn't tell you anything.
Tim Duncan was able to maintain his effectiveness deep into the middle teens despite his athleticism being gone, and haven't spent his youth developing skills that aren't quite as valuable today. The reason he was able to do so is because humans are adaptable and will respond, given their respective abilities.
If you have any interest to figure out how good Oscar Robertson would be today you have to ask yourself questions like:
1. What would his handle look like if he grew up in the current era?
2. How much could his shot improve with modern shooting coaches?
3. How much would PEDs help him?
4. How would modern sneakers that make it safer to jump change his game?
If you're not, you really aren't doing analysis.
jpengland wrote: globalisation, population growth
These are two the fair questions. The US African American population (non African American, American players are basically gone) was 26.5 million in 1980, 34.6 million in 2000 and 41.1 million today. That is a big change making the potential talent deeper. International is obviously a huge change.
You should also factor in things like childhood obesity which reduces the talent pool. But overall I strongly suspect pool is deeper today