It's also important to note that by the time Jordan was 31, he had played in 3 Finals, while Lebron has played in 7. That's pretty insane.
Is it really "insane"? By the time Bill Russell was 31, how many championships had he won?
At the time when Bill Russel was 31, there were 9 (nine) teams in the NBA. I'm just going to leave this out here.
And if we shrunk the current NBA to 9 teams, do you think LBJ would be winning 6 straight championships?
I would suspect the concentration of talent would make it TOUGHER to repeat year-after-year...
That's only if you assume the amount of talent is comparable.
russell's opposition was good enough to take the celtics to 7 games on ten different occasions. russell and the c's won all 10 times.
may favorite stat line: 30 points and 44 rebounds against LA in 1962.
http://espn.go.com/nba/playoffs2006/columns/story?id=2453844&columnist=shouler_kenas for the general talent in the league, the US population in 1965 was 194 million. the population now is 323 million.
9 NBA teams in 1965, 30 teams in 2016.
1.66x more people now
3.33x more teams
so teams were formed at about double the rate of the population increase.
of course, there are also far more international players now, ~100 out of ~450, about 22% of the league. so the international players concentrate the talent a bit more.
there is likely greater participation in b-ball now, as the sport is more popular. there are also more black players in the league, in large part due to a decline in racism by league owners and fans.
but i do think it's safe to say that russell's era was quite competitive. players were drafted out of college, just like now, and he played against the best opposition and beat them nearly every time. hard to see how one can hold that against him. he and the celtics were absolutely dominant. red auerbach was a visionary, and saw avenues to success (such as having a dominant defensive big man like russell) that other teams had ignored.
the rules were very different, too. traveling rules were far stricter - lebron would NOT have been able to do the crab step, fo rinstance. even in the early 80's the rules were much tighter, just look at jordan in college, he had to dribble more carefully and stiffly in order to not carry the ball or take too many steps.
the creation of the 3-point line, as well as the defensive 3-second rule, has also opened up the lane for slashers. you can't just pack the paint anymore.
PED's
and medical/nutritional advancements have also had an enormous impact.
equipment is better now too. in russell's era the court was full of dead spots. the balls likely weren't machined as consistently. shoes weren't as good.
lebron has thrived in this travel-friendly, open space NBA. russell dominated in the closed paint era (he also did not have the benefit of cherry-picking teammates in free agency).
so yes, there are plenty of differences in eras. but russell rose up to every challenge placed before him. he crushed the competition, and won on the scoreboard. and to me that is what really counts.