Drink deep the experience of seeing Michael Phelps make his run at 8 golds. If he misses gold in his last race on Saturday, we will still be talking about his achievement but the excitement will die in a few years.
But if he manages to seal the deal and break the single Olympics record of 8 golds in one Olympics, they will be talking about it for generations to come.
Make no mistake, we are witnessing sports history; not to mention some of the most thrilling swimming races ever.
This is like Mark McGuire vs. Sammy Sosa to see who could break the single season HR record first. Without all the messy needles and pills.