A more thorough explanation:

Definition: A Latin phrase meaning "an intention without effect." It refers to an intention or plan that is not carried out.

• John had planned to study for his exam all weekend, but he ended up going out with his friends instead. His intention to study was affectus sine effectu.
• Sarah had intended to start exercising regularly, but she never got around to it. Her intention was affectus sine effectu.

These examples illustrate how affectus sine effectu refers to a situation where someone has a plan or intention, but they do not follow through with it. It is a common experience for many people, and can be frustrating when goals are not achieved.