This is something we've suspected for a while, so it's nice to see it confirmed by research.
Understanding a complex problem space rarely happens in a flash of insight. It's a slow accretion of knowledge that happens over years. At DataTribe we work in sectors, like cybersecurity & industrial, where this is particularly true, and you can see it in the average age of our founders (about 42).
The researchers looked at start-ups established between 2007 and 2014 and analyzed the top 0.1 percent — defined as those with the fastest growth in employment and sales. The average age of those companies’ founders was 45.