You can be wildly off in baking and produce an edible, enjoyable product. Especially if you have a sense of how to adjust the consistency of what you're mixing

You can be wildly off in baking and produce an edible, enjoyable product. Especially if you have a sense of how to adjust the consistency of what you're mixing and can adjust baking times. But-- if you use weight measurements and attend to precision, you'll have to adjust a lot less and you'll come much closer to the best possible output.