I looked up and out to see a rainbow. The merest hint of a fleeting rainbow dragged a memory of red from deep within me. The memory was of an essay that Arthur C. Clarke wrote. The Light of Common Day was published in 1963 and he made a point that fascinated me when I read the essay many years later as an adult.
Fuji X-T4 | Fuji XF18-55 F2.8-4 R LM OIS | 83 mm | 1/2000s | f/13 | ISO 160 | handheld