The world's two most valuable private technology companies are Uber (valued at $68 billion) and Didi Chuxing ($50 billion).
Both are ride-sharing transportation companies, are less than 9 years old, and operate in 550 and 400 cities respectively.
I guess people just needed a better way to get from A to B. It's that simple.
Lesson: Never stop innovating. Keep finding ways to improve the way you use, consume, share or create things around you.
You never know what's next.