Just one decade left to stop being a loser...
either way, 45 isn't the midpoint, it's the average. the article shows a big chunk of founders in their 50s and a small slice in their 60s. it also shows that the probability of success rises with age, "at least until the late 50s." it crashes in the mid-to-late 60s, but an early 60s founder is still more likely to succeed than a founder who is younger than about 45.
This does not seem like something that convinces me that I'm not a loser.