Every craft requires attention to detail. Whether you’re building a bicycle, an engine, a table, a song, a typeface or a page: the details are not the details, they make the design.
Concepts don’t have to be pixel-perfect, and even the fussiest project starts with a rough sketch. But building something that will be used by other people, be they drivers, riders, readers, listeners – users everywhere, it needs to be built as well as can be. Unless you are obsessed by what you’re doing, you will not be doing it well enough.
Sometimes only the experts know the difference, but if you want to be an expert at what you’re making, you will only be happy with the result when you’ve given it everything you have.