What do you associate with "Iron Man"?

For mental-picture people images from the movies or the comics pop up. Via the movies "Captain America" is closely associated for example. The method of loci [0] exploits this somewhat.

Do you rather associate sounds, music, smells instead? Is it purely abstract?

[0] https://en.wikipedia.org/wiki/Method_of_loci

I never even considered this might be what it’s like to have pictures in your head! I guess because I have no idea what that’s like. I have a lot of voice in my head. (Just my own!) and I talk to myself in my head a lot.

I should say that I do have a strong mental _something_ that is good for imagining connections between stuff. When I’m coding I can ‘see’ pretty much instantly how everything should be connected together. What the user agent and server and database and api etc will all do and what they’ll pass back and forth and store just comes into my head very effortlessly all connected together. So I think the visual bit of my brain is being used for that instead.

How does, erm, arousal work with no inner image?

Good question. It has to more ‘ideas’ based I guess!

So you have no dreams? Seeing pictures in your mind is like a dream, but while awake.

I hardly ever remember my dreams and when I do it’s more of a feeling and a memory or emotion of some stuff that happened.