How might we reinforce individual control, particularly when close to acting? How might we endorse an unexpected competing behaviour, reinforcing a desired one? How might we illustrate that the choice is theirs?

We increased perceptions of value without changing the price.

To survive in nature, organisms converge on winning solutions. There’s more than one route to the same good idea.

variation and selection with a mechanism for rewarding success and weeding out failure, or eradicating it as quickly as possible, is a far better mechanism for the advancement and development of technologies than deliberate directed investment, based on certain possibly wrongheaded preconceptions.

operational transparency,

In this study, Johns Hopkins researchers tested the PullClean at a ward in Baltimore, finding that hand hygiene compliance increased from 25% to 77%. By making sanitation a defaulted and more automatic behaviour, instead of expecting people to go out of their way, their design builds the assumption – the default – that every time you open a door,

For humans, as it seems with bees, the clearer the cue, the lighter the cognitive load, the easier and faster it is for us to decide.

We trust expensive messages because they help us to access otherwise unobservable information about the messenger:

In total, the TRIZ methodology recognises that there are 40 inventive principles that can be drawn upon to inspire innovation.