Visualization
My friend couldn’t imagine/ visualize things in his head, like his family’s faces or anything. He thought it was normal for everyone until I told him that people actually can ‘see’ things in their head and even imagine things happening in their surroundings with their eyes open. He was pretty shocked and ended up talking about this condition he discovered he had, called aphantasia, for the next 2 days.
Story credit: Reddit / ChennypieX12