Man, this whole thread has me nodding along so hard. I've always walked right past those cracks in the sidewalk without a second thought. My own dumb joke is that my plant spotting skills are so bad, I probably congratulated a weed for being a rare flower once. But you're all right, it's like each one of those stubborn green guys is a tiny chapter of what's happened there, all the sun and rain and feet. I'm honestly a little embarrassed I never saw it before. Now I can't unsee it, and my boring walk to the bus stop feels like a nature documentary.