This is true. I tried to write a definition essay on what skiing is to me and it was the worst thing ive ever written. I kept feeling like it wasnt good enough and it turned out shitty.
But just go through a brief history of skis for a couple pages, talk about the first skis and how they used to use birch tree roots for bindings, innovation in design like camber and shit, wider tips and tails, metal edges, changes in base materials polyethylene, then describe todays skis and types of skiing and stuff. I think you could write 3 pages on that easy.