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This is a thought experiment "Ball on a Table" for detecting whether someone has Aphantasia. What do you see when you perform this experiment?

This is more of me trying to understand how people imagine things, as I almost certainly have Aphantasia and didn't realize until recently... If this is against community rules, please do let me know.

The original thought experiment was from the Aphantasia subreddit. Link: https://www.reddit.com/r/Aphantasia/comments/g1e6bl/ball_on_a_table_visualization_experiment_2/

Thought experiment begins below.

Try this: Visualise (picture, imagine, whatever you want to call it) a ball on a table. Now imagine someone walks up to the table, and gives the ball a push. What happens to the ball?

Once you're done with the above, click to review the test questions:
  • What color was the ball?
  • What gender was the person that pushed the ball?
  • What did they look like?
  • What size is the ball? Like a marble, or a baseball, or a basketball, or something else?
  • What about the table, what shape was it? What is it made of?

And now the important question: Did you already know, or did you have to choose a color/gender/size, etc. after being asked these questions?


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  • The ball was a colorless wireframe. Color wasn't necessary for the scenario.

    The person was genderless. Gender wasn't necessary for the scenario. They looked like a wire frame skeleton of a person.

    The ball was roughly the size and density of the smallest size bowling ball.

    Table surface was circular wireframe with four legs. Material wasn't filled in as I wasn't trying to model for friction.

    My imagination doesn't tend to fill in unnecessary details. Too much wasted processing power. I also don't really envision things. Like, I don't "see" them in my head. I feel out the shapes and weights and other physical properties relevant to the scenario and let my intuitive understanding of physics roll the scenario forward.

    Like, I know the ball rolled until it fell off the table, it fell some distance, then bounced off the floor three or four times with a sharp crack, as I filled in that the floor was concrete as soon as I needed to know how it would bounce, and the sound it would make filled in naturally from there.

    I genuinely don't know whether how I think qualifies as aphantasia. I don't really imagine visual stimuli, but my imagination is very thorough for sound and feel.

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