Writing one can be useful just because it helps clarify your idea. If you can't clearly explain what your trying to do and who its aimed at on paper then you sh

Writing one can be useful just because it helps clarify your idea. If you can't clearly explain what your trying to do and who its aimed at on paper then you should probably restructure your idea. You dont necessarily have to stick to a business plan format, something like the YC application form can be just as useful. Of course a lot of the best stuff happens through accident/luck and no amount of planning will help you there.