Systematic Invention (Expertise + Scheduled Thinking + Recombination)
Be an expert, book two hours a month, and fuse two things that already exist.
- Difficulty
- Moderate
- Time to result
- ~months to results
- Steps
- 4
- Confidence
- 93%
Evans arrived at Amazon convinced he was not an inventor, then reverse-engineered a repeatable method and left with 70+ patents. The method has three components: genuine domain expertise, dedicated device-free thinking time (only about two hours a month), and a bias toward combining two things that already exist rather than conjuring something wholly new. The fourth insight is that you need very few good ideas — the years of value come from expressing and optimizing one.
Origin
Developed by Ethan Evans during 15 years at Amazon, prompted by the Amazon leadership principles 'think big' and 'invent and simplify', which he initially believed he could not satisfy. He anchors it in Edison's '1% inspiration, 99% perspiration' — arguing you can learn the 99%, which makes the 1% far less hard. Related lineage: Bill Carr, Evans' former boss and co-author of 'Working Backwards', later said the book should have been called 'The Invention Machine', because Jeff Bezos' goal was a company that systematically out-invents others.
Core principles
- 01Invention is a process, not a personality trait — 'it's not pure magic'.
- 02You cannot invent in a domain you don't understand; expertise is the entry ticket.
- 03The scarce input is undistracted thinking time, not raw time — two hours a month is enough.
- 04Recombination beats creation from nothing: take two existing things and fuse them.
- 05Analogies from unrelated interests (military history, biology, games) are the raw material for recombination.
- 06You need very few good ideas — one idea can take years to express, and the expression is where most value is created.
- 07Most of invention is the incremental optimization phase, not the eureka.
How to run it
- 1
Earn expertise in the domain you want to invent in
Become genuinely knowledgeable in the area first. Without it you are, in Evans' image, fumbling around with a bathtub full of chemicals hoping to invent cancer drugs.
Pro tip Expertise makes the difference between a novel combination and a naive one — you need to know what has already been tried and why it failed.
Watch out Do not confuse enthusiasm for a space with expertise in it.
- 2
Book roughly two hours a month of device-free thinking
Get away from all your devices, go into a room with the specific problem, and force yourself to concentrate on what you know and how you could invent against it. This is a calendared block, not something you wait to feel.
Pro tip Bring one concrete problem into the room, not a vague ambition to be innovative.
Watch out The failure mode is believing invention will simply come to you while you work — 'they don't spend dedicated time actually thinking'.
- 3
Collide two things that already exist
Instead of straining for something wholly new, deliberately look for two existing things to combine — ideally one from your domain and one from an unrelated interest. This is where cross-domain hobbies pay.
Pro tip Keep a stock of unrelated interests. Evans' drone patent came from holding 'drones and delivery' and 'aircraft carriers' in mind at once.
- 4
Spend years expressing the one idea
Treat the idea as the beginning, not the end. Prime, Kindle, and the newsletter are all decades-long expressions of a single idea. The optimization and incremental improvement work is where the idea becomes real — and where reputation for inventiveness accrues.
Pro tip Amazon Prime went 2-day → 1-day → same-day and accreted ~25 free benefits. All of that is expression, not invention.
Watch out Chasing a stream of new ideas instead of expressing one is the trap. 'You don't need very many good ideas to be seen as tremendously inventive.'
In the wild
Evans was thinking about drone delivery for Amazon while also being interested in military history. Holding both at once, he asked: is there a way to have an aircraft carrier for drones? The answer was a truck with no top that drives slowly around a neighborhood while four to six drones shuttle packages to houses, instead of the driver stopping at each door.
→ A granted Amazon patent, and one of the 70+ patents Evans accumulated during his 15 years there. It has not yet shipped, but he expects it eventually will.
When Evans joined Amazon he did not think of himself as an inventor and saw the 'think big' and 'invent and simplify' leadership principles as an existential problem — 'I said I'm in trouble, I don't know how to do this.' Rather than accept that, he sat down and worked out a system for inventing on purpose.
→ Over 70 patents, all created during his Amazon tenure, and a career that ended at VP.
Common mistakes
Waiting for inspiration instead of scheduling it
People assume invention arrives unbidden and so never book the block. The whole system fails at step two: without dedicated, device-free concentration on a specific problem, the recombination never gets a chance to happen.
Believing you need a torrent of ideas
The perception of being tremendously inventive comes from a handful of ideas expressed relentlessly over decades, not from idea volume. Optimizing the one you have beats generating the eleventh.
Inventing outside your competence
Recombination without domain expertise produces combinations that are novel and useless. You have to know the space well enough to know which fusion is non-obvious and which is merely naive.
Is it for you?
Best for
PMs, engineers, and senior ICs who need to demonstrate innovation and strategic thinking to reach the next level, and who believe they are 'not the creative type'.
Not ideal for
Anyone who has not yet built genuine expertise in the domain, or roles where execution consistency (not novelty) is the promotion criterion.
From the transcript
“you don't need that much time two hours is great but you only need two hours once a month people think invention takes all this…”
“and the most straightforward way to invent is not to somehow come up with something completely new but instead to put together two things that…”
“you don't need very many good ideas to be seen as tremendously invented”
“you do need to be somewhat of an expert in whatever area you want to invent”
“I go in a room with the problem I have and I force myself to actually concentrate on what do I know and how can…”
From the episode
Taking control of your career
Ethan Evans (Amazon)