Oh nostalgia just knocked the door :-) I have somewhere in my library one of the Magic Eye books and I was a huge fan of stereograms back in the 90s. The momen

Oh nostalgia just knocked the door :-) I have somewhere in my library one of the Magic Eye books and I was a huge fan of stereograms back in the 90s. The moment you see your first stereogram you feel a strange sensation, like something has been unlocked in your mind. Fellow HNers who haven't experienced this should dedicate some time and go down this nice rabbit hole ;-)