Take a vacation plan. Assumptions could be around cost (“I can afford this vacation”), satisfaction (“I will enjoy this vacation”), coordination (“my relatives can join me on this vacation”), etc. Here, de-risking is as easy as doing a few minutes of online research, reading reviews, and sending an email to your relatives.
De-risking acknowledges that every belief is founded on base assumptions and as a result they may be untrue.
As such, each assumptions needs to be checked (checks and balances: mental model) with a test to prove the assumption try or false.
