Subject: Re: A mechanical strategy
The book introduces an investment strategy called Automatic Investment Management (AIM).

From memory:
Determine your optimal cash:stock ratio.

Every month to quarter you rebalance to keep your desired ratio.

He also describes using bands.

Backtest shows it loses out to B&H with minimal improvement in Drawdown.

During a bull your selling. During a prolonged bear your buying all the way down until cash all gone.