Autism and Movement Fluidity in Thinking by Judy Endow Unreliable Fluidity in Thinking One of the hardest things about my autism is the unreliable fluidity of my own thinking. Sometimes my thoughts are fluid and sometimes they are not. When my thoughts are fluid I can easily think through task-oriented things such as making a meal, writing an article, or cleaning the house. I can make a mental (or written) list and follow it. I can think of a main idea and sub topics. I can gather supplies and start. When my thoughts are not fluid life is a bit different.