From ActuallyAutistic Wiki

This page might be redundant since Executive dysfunction already exists. The contents may need to be merged.

"An autist at rest stays at rest; an autist in motion stays in motion

Autistic inertia, or simply inertia, is a term that describes difficulties in starting or switching tasks. It can be related to movement difficulties or executive dysfunction.

An example of how autistic inertia can feel: Picture yourself lying in bed, scrolling through your phone. You think to yourself, "I'd like to get up now." You don't. You're getting hungry. You think, "I'd REALLY like to get up now. I want lunch. I'm going to get up now and get myself lunch." Nothing happens. "No, really, self, I'm getting up, I want to eat, come on please can we just move!!" You don't move. You keep scrolling through your phone.

A journal article about autistic inertia: