When we do science, we tend to over-complicate things, so we need to remember to keep it as simple as we can. Occam’s razor is a logical principle attributed to the mediaeval philosopher William of Occam and it states that ‘one should not make more assumptions than the minimum needed’. Put another way, ‘the simplest explanation is usually correct’. It underlies all scientific modelling and theory building. I call it “the tight-wad principle” – never spend any more energy, money or effort than you need to solve the problem. OK? That’s settled then. As and when I get time, I’ll post some silly stuff here to entertain, elevate and amuse. Watch this space.