All-or-nothing thinking reduces a varied situation to two extremes: perfect or worthless, successful or a failure, entirely independent or hopelessly needy.
It sounds decisive. It is often terrible at counting the options.
An hour isn’t a whole day. It is still an hour.
You can’t give the project the uninterrupted day you imagined, so you give it nothing. The real choice included writing a page, testing an idea or deciding what to do next. Those possibilities disappeared inside the demand for ideal conditions.
The same narrowing can happen in a relationship. One disappointing evening becomes proof that nothing is good. Or the existence of good moments becomes a reason you shouldn’t mention a problem.
You don’t have to split the difference in every argument. Some situations call for a clear no. The question is whether two extremes have hidden something relevant between them.
Perfectionism examines the standard that keeps moving. Mixed feelings makes room for more than one honest response without requiring one to cancel the other.
For a closer look at mental shortcuts in evaluation, Noba’s Judgment and Decision Making explains how people judge information and options. Read it alongside the everyday examples here, rather than treating one habit of thought as a verdict on your whole mind.