Source
When this applies
when a product or service is already performing well and the team is tempted to stop improving it
The takeaway
Treat chronic dissatisfaction with your own product as a competitive asset, not a psychological liability, by converting it into continuous improvement work.
Why it works
Markets and competitors continue moving; a team that stops improving because current results look good is setting up for future obsolescence, so treating success as a trigger for more improvement, not less, prevents stagnation.
One level up
The habits of mind that feel uncomfortable (restlessness, fear, dissatisfaction) can be harnessed deliberately as a structural advantage rather than suppressed.
Where it stops holding
This stops working when it tips into never shipping because nothing is ever judged 'good enough,' paralyzing the business.
Detail
rule: Just because a product appears to be selling well, an engineer must keep on improving; have permanent dissatisfaction with your product and use that as an asset, not a liability.
rationale: Dyson explicitly contrasts this with resting on laurels, which he associates with decline.
In their words
If you are like this, guess what? You'll never be able to turn it off. You'll be like that at work. You'll be like that at home. You have to use that as an asset. It is not a liability.