The Heisenberg Uncertainty Principle, discovered in 1927 states simply that the act of observation changes the thing observed. In this case, when I set up to photograph a flower it moves just enough to make getting a sharp image unlikely.
It might have been the tractor trailer trucks going by inches from where I was standing or it might have been the breeze from the coming storm, but I don’t think so. By observing I changed the thing observed.
So there are a few options to bypass this principle: the first is to raise the ISO to get a faster shutter speed. The second is to use a wider aperture for the same reason, and the third is to pretend to be satisfied with a fuzzy shot.
I left the ISO at 200 and the aperture at f/4 just as an experiment and almost all the shots were so sharp I could see the daddy long legs laughing at me. But I liked this one at f/2.8 better.
As Werner Heisenberg himself said: “There are things that are so serious that you can only joke about them.” In other words, don’t sweat the small stuff and if necessary convert to black and white.