Ah, aphantasia! Around 50 years, I thought when someone said they can't get an image out of their heads they were speaking metaphorically. I mean, no one can see images in their heads, right?
After I found out about aphantasia I asked friends and co-workers if they could, say, picture a common object, such as an apple, and move it around. Look at it from diffent angles. They all said yes. It baffles me. Can't encompass what it would be like to be able to do that.