https://apnews.com/e378126a6417466f869b359561d29f09 > SEATTLE (AP) — Personal computers, conservation, pro football, rock n' roll and rocket ships: Paul G. Allen couldn't have asked for a better way to spend, invest and donate the billions he reaped from co-founding Microsoft with childhood friend Bill Gates. > Allen used the fortune he made from Microsoft — whose Windows operating system is found on most of the world's desktop computers — to invest in other ambitions, from tackling climate change and advancing brain research to finding innovative solutions to solve some of the world's biggest challenges.