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Navigation Efficiency -
how did Iverson get from the 3-point line, all the way to the rim in one dribble?
He did it using what I like to call "navigation efficiency", which is taking the maximum number of steps, with the least number of dribbles - this is something players in the 60's were not allowed to do because the ref would call a travel or carry...
In the GIF above of Iverson, he takes 1 dribble and 3 steps - this is standard footwork in the modern eras (post-1980)... but if Iverson had to take an extra dribble here, he wouldn't have generated nearly as much momentum, and the play would not have been as athletic.
In the 60's, to abide by the strict dribbling rules at the time, every player would take an extra dribble in the GIF above (oscar might take several extra dribbles)... This is huge - because when you DON'T take that extra dribble - when you AREN'T slowed down by having to dribble, you are RUNNING, so you can generate better momentum leading up to and on the takeoff.
But when you have to take an extra dribble, it slows you down and you lose momentum and explosion going up for the shot - this is the case with ALL dribbling moves, not just the one above.
This is THE reason why players in the 60's appear less athletic - they simply weren't allowed to do the same moves today's players are allowed to do - if you aren't allowed to do the same moves, how can you make equally athletic plays?... the less stringent travelling and carrying rules that began in the 80's allowed players to be navigation-efficient and that efficiency allows them to gain better momentum leading up to and on the takeoff.
here's another one - jordan does the standard 1-dribble-3-step footwork - if jordan had to take an extra dribble here, he would not have generated the tremendous momentum he did to finish the play as explosively as he did... As you can see here, Jordan gets to RUN when he doesn't have to dribble, which generates more momentum and explosiveness than if was slowed down by having to take extra dribble(s).