What is the Goal Gradient Effect?
The Goal Gradient Effect (which is similar to the Zeigarnik Effect) is the psychological principle that explains how incomplete tasks stick in our mind more than ones we have completed.
It is based on the fact that it is human nature to finish what we start and, if we don’t finish something, we experience dissonance, resulting in an uncomfortable feeling. Not finishing something puts us in a state of tension and gives us added incentive to get that thing completed.
Here is an example of Goal Gradient Effect used by Abokado :