Deceivers hijack our trust in precision by attaching specific numbers (e.g., "13.5% of customers") to their claims. This gives a "patina of rigor and understanding," making us less likely to question the source or validity of the information itself, even if the number is arbitrary.

Vague stories can sound fabricated. Including specific, non-round numbers or precise facts (e.g., "it was 4.2" instead of "around 4") makes a narrative feel more authentic and tangible. This grounds the story in reality and enhances the salesperson's integrity and credibility.

Customers often rate a service higher if they believe significant effort was expended—a concept called the "illusion of effort." Even if a faster, automated process yields the same result, framing the delivery around the effort invested in creating the system can boost perceived quality.

Consumers perceive products as higher quality when they are aware of the effort (e.g., number of prototypes, design iterations) that went into creating them. This 'labor illusion' works because people use effort as a mental shortcut to judge quality. Dyson's '5,127 prototypes' is a classic example.

Using specific, non-round numbers in claims makes them seem more accurate and credible. Consumers subconsciously associate precision with expertise, whereas round numbers can feel like casual estimations. This effect was demonstrated in a study where a deodorant claim of '47% reduction' was rated as more credible than '50% reduction'.

For sophisticated consumers, branding based on unsubstantiated luxury materials can create skepticism. A marketing message focused on scientific proof, tangible benefits, and performance can be more compelling and build greater trust, especially for a high-price-point product.

Abstract technical specs like "5 gigabytes of storage" are far less memorable than concrete phrases that create a mental image. Research shows people are four times more likely to recall concrete terms (like "white horse") than abstract ones. Effective taglines allow the customer to visualize the benefit.

Instead of generic praise like "we love this product," use testimonials with specific numbers (e.g., "saved 12 hours a month"). This allows prospects to visualize tangible value and see themselves in the outcome, making social proof significantly more persuasive.

When faced with the complex task of judging a product's quality, consumers often substitute a simpler question: how much effort went into making it? By highlighting the 5,127 prototypes, James Dyson masterfully signals immense effort. This 'labor illusion' imbues the final product with a perception of higher quality and justifies its premium price, even though the effort itself is irrelevant to performance.