Fast Phrases is based on a biologically logical process – involuntary memorization. You are exposed to knowledge that you don't deliberately try to remember at all costs. But the effect is that it remains in your mind as long-lasting, active – not passive – knowledge. My profession uses methods very similar to this one to help people adopt complex skills with higher effectiveness. And the purpose of such methods is not to get things done simply in a quicker manner, but to get them done more properly, too.