Many companies get comfortable doing what

Many companies get comfortable doing what they have always done, with a few incremental changes. This kind of incrementalism leads to irrelevance over time, especially in technology, because change tends to be revolutionary not evolutionary. So you need to force yourself to place big bets on the future. It's why we invest in areas that may seem wildly speculative, such as self-driving cars or a balloon-powered Internet.

- Larry Page, from How Google Works book by Jonathan Rosenberg and Eric Schmidt