Yes, I often stop and think about how all our separate human consciousnesses are this giant web of interlacing thought and experiences.
In high school I would ride the bus home and think about what it would be like for me coming home and walking in my front door and how most of my classmates would be doing the same thing, but in a different mindset, in a different setting, with different parents, etc.
It really interests me to think about how complex my life is and how every other person on this planet has their own very complex life, sometimes completely separate from mine. And you think about, say, movie stars or famous politicians, and right now they are doing very human, very normal things. They're changing their toilet paper, cutting their toenails or throwing out an old bandaid. And it doesn't even have to be famous people. It could be that guy you held the door open for or the woman who tripped and fell down those icy stairs or that kid with his dad in line in front of you at the supermarket.
Anyway, yeah. I think about these things pretty often.