I assume they meant aphantasia. As far as I know, there's no evidence that people with aphantasia cannot dream, however. Anecdotally, I believe I have aphantasi

I assume they meant aphantasia. As far as I know, there's no evidence that people with aphantasia cannot dream, however. Anecdotally, I believe I have aphantasia and I very rarely remember any of my dreams, but it does happen.