I've grown fond of this system for learning, and now have 6 of them variously spread across the internet. Unless anyone else has better ideas, it's the best wa

I've grown fond of this system for learning, and now have 6 of them variously spread across the internet. Unless anyone else has better ideas, it's the best way to grok key information and avoid re-consulting page 245 of a PDF or websearching the same thing over and over.