Earlier quoted context omitted.
Can you really not tell the difference between the corner laundromat (a profitable small business) and Atlassian (a startup which was profitable for most of its history)? Startups are companies designed to grow fast. [1] Frequently, that means spending more than comes in but it's definitely not a prerequisite. Likewise, there are plenty of small businesses which take years to reach profitability (some never do)—that…
Startups are companies designed to grow fast. I would disagree with this terminology. I posit that a "startup" is a company designed to grow big . How fast it gets there is an implementation detail. Many startups aim for fast growth, but not all do. To me, the distinction between "the corner laundromat" and a slow-growing startup is that the startup still intends to be a Really Big Company.
Perfect example: YC funds startups only. YC funded a company working to cure HIV. That is going to take a decade probably. When they are ready they will be big in an instant.