"...something called Armstrongs subsription..."
Googling for Armstrong Economic Pi Cycles produces about 85,000 hits.
I personally don't believe in his theories, but for an overview the following two articles make for interesting reading. One is two years old, the other is from last month.
http://www.moneyweek.com/investment-...
http://www.moneyweek.com/news-and-ch...