I also noted the open mouthed stare, it’s really quite sad to see him looking so disengaged from the world around him.
In the videos she shares of River surrounded by external stimuli such as other people or music, there doesn’t appear to be any interactions or pleasure, he just looks lost.
Surely friends and family will have noticed, even more so now her sister has a little one who will no doubt be meeting milestones as she grows which will make River’s challenges even more evident.
My heart bleeds for the little mite, he needs intervention, and undoubtedly so do his parents.