Скачать или смотреть Old Players with Better Numbers Than in Their Primes!? What's it Mean?

AOH looks at several players in their 30s, some late 30s, and of course the person everyone on the planet knows is 40, then compares their numbers to those players's own prime numbers. In some cases the numbers are the same or even better now. Why?
I have heard the media repeatedly fawn over LeBron still achieving big numbers late in his career, but today I heard SAS point this out with Durant, stating that Durant is better in his 30s than in his 20s.
What if it's true? Is that a good thing? Is he really better than in his 20s or are his numbers just better? If the player's numbers can get better without the player getting better what's that say about how the game has changed?
This because particularly relevant once you realize it's not one or two people pulling this off, but several. Are they all freaks of nature, or is the league making it so much easier for offense now that it's not even worth comparing today's stats to the stats of the past?