One lovely spring morn I was walking through one of the less salubrious parts of Leeds (as you can imagine there’s some pretty stiff competition on that score) and as I walked past an area of grass which boasted a passed out drunk snoring contentedly and clutching a 3l bottle of White Lightning cider the council man had just arrived and was unloading from his van a ride-on mower to cut the grass.
Later that same day I walked back the same way and the grass had been cut except in just one place. Yes, the council man had mowed around the drunk who was now also gone. Now the interesting thing here is I knew why all the grass had been cut except one small patch but if I hadn’t seen the drunk there I would have had no idea why and considered the whole thing very odd.
The puzzle I set you is: What do you think I then thought made this whole incident relevant to astrophysics?