The gym sent me an offer for Nike+.
24 Hour Fitness was passing along a Finish Line promotion to its members. Most of the email was images and legal copy, so little of the actual offer survives as plain text. The subject line is the useful part. Fitness technology had entered the ordinary retail inbox.
Nike+ connected a small shoe sensor to an iPod nano. It could record a run, report pace and distance, and move the results to a computer. The hardware was simple. The larger change was seeing a workout as data that should be saved.
I was already surrounded by data at work. Beatport measured sales, customers, files, and system activity. Sports had always produced numbers too, but most of mine were still a finish time, a gym machine display, or whatever I remembered after the workout.
Nike+ made the run itself portable. The device came with you, collected the session, and gave you something to look at later. That idea would eventually become completely normal across watches, bike computers, phones, training apps, and every other sensor I would use.
This email does not prove I bought the kit. It does not even preserve the price. It shows that I was a 24 Hour Fitness member and that the product reached me at the start of July 2008.
That is enough for the archive right now. A real purchase, run log, or photo can make the story larger later.
For the moment, the interesting thing is small: the gym was no longer only selling access to equipment. It was helping sell a way to turn the workout into a file.