What is an assumption?
TL;DR
An assumption is a belief a decision depends on that has not been fully proven.
Belief
Evidence
Trigger
An assumption is a belief that sits underneath a decision. It may be reasonable, informed, and widely shared, but it is not the same as established evidence.
Why assumptions matter
Decisions often fail quietly at the assumption layer. The final recommendation can sound rigorous while depending on an unspoken belief about customers, timing, cost, or human behavior.
Making assumptions visible does not eliminate uncertainty. It makes uncertainty easier to manage.
A useful assumption statement
A strong assumption is specific enough to challenge:
We believe narrowing the product will accelerate learning more than it reduces near-term revenue.
That sentence gives a team something concrete to test, discuss, and revisit.
Assumptions in Clarlume
Clarlume surfaces the beliefs a decision depends on and keeps them attached to the outcome. When reality changes, you can see whether the choice was poor or the underlying assumption simply proved false.
Questions & Answers about Assumption
A fact is supported by evidence you currently accept. An assumption fills a gap where evidence is incomplete but a decision still has to move forward.
