it's weird to think about.
and on the topic of Imagine...
as i recall... once, my brother told me he has difficulty listening to Imagine, because it reminds him of how our mom reacted to the whole situation.
my mom wears a ring that says "IMAGINE". (i have one that says "DREAM"... because you may say i'm a dreamer, but i'm not the only one...)
me, on the other hand.... i quote it often, sing it frequently,
it's a song the world really needs to think about.