But you should read some anyway

There are two big problems with reading about what made other companies successful:

1. Correlation is not causation
Google is one of the most successful companies ever. Google gives its employees the ability to spend 20% of their time on whatever they want. Therefore, 20% time is a great idea. Is it? Or was Google successful because they're brilliant engineers who solved the right problem at the right time - killing it despite the lack of focus "20% time" causes? I don't know, and neither does anyone else.

Continued here