Lots of discussion last year about one of the sources: Aphantasia: A life without mental images (bbc.com) 91 points by adamcarson 235 days ago | 75 comment

Lots of discussion last year about one of the sources: Aphantasia: A life without mental images (bbc.com) 91 points by adamcarson 235 days ago | 75 comments https://news.ycombinator.com/item?id=10148792 https://news.ycombinator.com/item?id=10148792