// description
Assumption reversal lists every assumption embedded in a situation, product, or industry norm, then deliberately reverses each one to see what new possibilities emerge. The method works because most industry practices rest on assumptions that were once valid but may no longer be, or that were never consciously chosen in the first place. Reversing them exposes alternatives that convention has hidden.
// history
The technique appears across multiple creativity traditions and has no single credited originator. It is closely related to de Bono's provocation method and to the TRIZ principle of inversion. The approach is common in design thinking workshops and has been used by companies including IDEO and frog design.
// example
A KDP publisher lists the assumptions of low-content books: they have low retail prices, they are bought by individuals, they are physical products, they are permanent once published, and they serve a single purpose. Reversing each: What if a low-content book commanded a premium price (specialist professional use)? What if it was sold in bulk to organisations (corporate wellness programmes)? What if it was purely digital (Gumroad or Etsy PDF)? What if it was seasonal and archived each year (annual edition journal)? What if it served dual purposes (journal plus reference guide)? Each reversal opens a product or business model direction the publisher hadn't considered.
// katharyne's take
The most valuable thing to reverse is your pricing assumption. Almost every creator I work with assumes their product has a price ceiling determined by what competitors charge. Reverse that: what if there is no ceiling, and your job is to create enough specific value to justify a higher price? A generic nurse planner sells for $12.99. A planner designed with actual ICU nurses, with specific shift logging, medication tracking, and handover notes — suddenly $27.99 is a bargain. The assumption "low-content books can't be premium" is just an assumption. Reverse it.
// creative uses
- Apply Assumption Reversal to your Etsy pricing: list the five pricing assumptions embedded in your niche (products are under $15, bundles are discounted, digital is cheaper than physical, commercial use costs more), then reverse each one and ask what product or business model that reversal points to. At least one reversal will produce a viable premium product concept.
- Use it on Midjourney style norms: list what everyone in your niche does (soft colour palettes, nature themes, minimal text, square format) and reverse each assumption one at a time. Bold dark palettes, urban industrial themes, text-forward design, wide landscape format — each reversal is a differentiation direction that your entire category is ignoring.
- Apply to your course delivery model: list every assumption (video-first, self-paced, lifetime access, sold once, individual buyer) and reverse each. Audio-first? Live cohort only? Time-limited access? Subscription? Team purchase? Each reversal opens a different business model with different economics and different buyer relationships.
// quick actions
- List 8 assumptions about how products in your niche are made, sold, priced, or packaged. These are things every competitor does without questioning. Reverse each one and write one sentence about what that reversal would look like as an actual product or business model. The one that feels most uncomfortable to reverse is probably the one most worth pursuing.
- Apply Assumption Reversal specifically to your customer acquisition assumptions: "customers find me through search," "customers buy once," "customers need multiple touchpoints before buying." Reverse each. Customers find you through referral only? Customers subscribe? Customers buy on the first interaction? Each reversal points to a different marketing strategy.
- Use it as a competitive differentiation audit: research your top three competitors and list their shared assumptions about product format, pricing, audience, and positioning. Reverse the assumptions they all share — those shared assumptions are the conventions your entire category has adopted, and reversing even one creates immediate differentiation.
// prompt ideas
I sell [product type] in the [niche] space on [platform]. List every assumption embedded in how products in this category are made, priced, packaged, and sold. Then reverse each assumption and describe what product or business model that reversal points to. I want at least eight reversals, including ones that feel uncomfortable or impractical — those are often the most interesting.
Help me apply Assumption Reversal specifically to pricing in my niche. Everyone in [niche] prices between [range]. What assumptions are baked into that price ceiling? Reverse each one and describe what a product would need to look like to justify charging [2–3x the current ceiling] while still being genuinely worth it to buyers.
Run an Assumption Reversal on my current course delivery model. My course is [describe format, length, delivery, price, access]. List every assumption, reverse each one, and give me three alternative course models that emerge from those reversals — including at least one I'd never normally consider.