The Generative Deep Learning Book -- The Parrot Has Landed.

Fast forward 50 years and the processing power of the Apollo Guidance Computer (AGC) that took those men to the surface of the moon is now in your pocket, multiple times over-- in fact, an iPhone 6 could be used to guide 120 million Apollo 11 spacecraft to the moon, all at the same time. This factoid doesn't really do justice to the brilliance of the AGC. Given Moore's law, you could pick anything computational and say that 50 years later, there will exist a machine that can run it 2²⁵ faster. It was people like Margaret Hamilton, the lead for the software team who coded the AGC, who chose not to see current hardware limitations as a barrier, but instead as a challenge. She used the resource available to her at the time to achieve the unthinkable.