I want to talk about the single most important tool that I have ever encountered in my entire life. That's not an exaggeration. I'm not talking about the Internet, although it is handy for binge-watching Dr. Who. I'm talking about the ancient tool of attention control. Call it mindfulness; call it dharana ("concentration" in Sanskrit); call it meditation; call it life-hacking for productivity; call it whatever you wish. It has been around as a technology for a long, long time. A mind technology. The ability to direct your focus on a single area for a specified period of time.