Assumptions are everywhere: they are the foundation of everything we think, say and do. Like the air we breathe, they are invisible and necessary. They save time by allowing us to take certain facts and situations for granted and let us get on with the business of forming and exchanging new ideas.
However, because they remain out of sight and out of mind, we usually don’t realize how many assumptions we take for granted when we make decisions. When our assumptions are wrong, we can commit major errors. When the stakes are high, or when things are rapidly changing, it helps to have a mental tool-kit that allows us to examine our own—and others’—assumptions.
Here’s a list of 10 assumptions that can lead us astray.