My definition is that a startup hasn't found its product-market fit yet. As soon as you are profitable, you're a business, whether or not you take investments t

My definition is that a startup hasn't found its product-market fit yet. As soon as you are profitable, you're a business, whether or not you take investments to grow faster. You're a startup when you're testing a new business model. If you realise that it works, then you're a business.