6 Innovations that made the Data Center Industry

I have been reading much more than normal which makes it so I haven't been writing as much.  One good book I read is Steven Johnson's Book On How We Got to Now

How We Got to Now: Six Innovations That Made the Modern World [Kindle Edition]
Steven Johnson

The 6 things are Glass (Fiber Optics), Cold (remove the heat), Sound (Digital/recording), Clean (Infrastructure), Time (data I/O), Light (Fiber Optics again).  For any of you data center nerds you will see how these 6 important inventions all made the data center industry possible.