“Of course you’re slowing down — you’re getting older,” the voice whispered, and I hated it. But it was true: this morning’s 1-mile repeats were disappointing, averaging around twenty seconds slower than earlier this year. “Age is catching up with you,” the voice continued, its tone at once insinuating and damning, “it’s getting harder to sustain speed.”
It’s not the fist time this voice has piped in; actually, I’ve heard it on and off for years. But when I looked at the data, I interpreted a different story.