"alone in a crowd": the book's author argues that actually this is the most natural human experience - we are "always alone", even with loved ones, even while h

"alone in a crowd": the book's author argues that actually this is the most natural human experience - we are "always alone", even with loved ones, even while having passionate sex, because our own concept of self is not shareable (barring some sci-fi trope): what I am feeling now while composing this answer is different from what the person sitting to my side (I'm on a bus) is experiencing. Same with me towards her, of course. There are maybe 50 people in this bus, and we are fifty individuals travelling alone towards a specific German town... everyone has different stories and different reasons and probably different hopes or expectations about what happens when we get there. And trying to make an info dump to another person to make him/her understand my situation so that I am not alone anymore would take hours if not days... and probably further distance each other, because the girl sitting to my side would then be unable to share how it feels to get a stranger twice her age to start describing his feelings about this trips, in English, too, which is not mine or her native tongue. ;)