Alvin Kamara has provided glimmers over the last two seasons.
The specialness, the uniqueness, has shown up in flashes. You see it and remember what Kamara looked like as a rookie. Still, the memory has become so stretched that you might not even have realized that the guy who dominated against Houston and Seattle last season was a better, more refined version of Kamara.
You probably didn't notice that Kamara's trainer, Dr. Sharif Tabbah, has fine-tuned his stride, and that he was running faster, or that his balance, in those moments, was better than it has ever been. If Kamara gets some better luck with injuries, the bar should go even higher, meaning that he should be better than he has ever been.