But the tree I have been tracking the progress of every day -- taking its photo, carefully observing for a change in color -- was staying resolutely green.
It sounds ridiculous, but I was almost getting frustrated that it seemed unwilling to surrender to the fall. I was beginning to get less enthusiastic about going out and looking at it. And then yesterday I walked up, and in front of me, seemingly overnight, the tree was light yellow. It didn't happen in patches; it didn't happen gradually. All of a sudden, the whole tree was noticeably changed.
And now look at it today, brightening into buttercup yellow. To someone walking along for the first time, it would be a different tree to the one it was only a few days ago. The changes that transformed this living thing were imperceptible to my eye in their increments, but they were happening nonetheless -- just like they are no doubt happening to you and me, under our own radar, but still day by day turning us into some new version of ourselves.