You make a good point, but remember that it doesn't cover 100% of those "secret knowledge" groups. Some self-help books really are helpful. Some conspiracy theo

You make a good point, but remember that it doesn't cover 100% of those "secret knowledge" groups. Some self-help books really are helpful. Some conspiracy theories really are true. Think about mathematics. That's a truth that many people refuse to see or accept, yet it's plainly visible.