Paradigm shifts happen when old minds retire or die. Something like that, but for companies. If you’re starting a company now, you are _definitely_ hiring less people much later, and different profiles.
"A new scientific truth does not triumph by convincing its opponents and making them see the light, but rather because its opponents eventually die, and a new generation grows up that is familiar with it."
Admirers of this idea shortened it to, "Science progresses one funeral at a time."