Startups feel like a race against the clock, because they are. The trick is to extend a startup's runway (or as one of my investors put it, "oxygen in the the scuba tank") long enough to become successful. This means creating the right team, finding product/market fit, executing flawlessly, and either becoming profitable or raising enough money to keep oxygen in the tank until you do (or until you get acquired trying).
One thing I've firmly come to believe after doing several startups is that a startup doesn't die until its founder(s) give up. By that I mean, there's always one more thing that the founding team can do to eek a bit more oxygen from the tank, even when things look hopeless. But when a founder gives up, there can still be money in the bank and it won't matter; the startup is done. It kind of feels like the tail wagging the dog, in a way -- startups succeed from pure, raw determination of the founders as they race against time.
What got me thinking about writing this post, though, is an awesome blog post I read about putting time in perspective. So often in startups it can feel like time's running out that it's refreshing to think about time on a grander scale. Here's an infographic from that article that really does put things into perspective. A great quote from that article is:
"Humans are good at a lot of things, but putting time in perspective is not one of them."