My kids had come into our bedroom and we had long conversation after one of them claimed to be able to see Mt. Everest out of the bedroom window. I was trying to get them to imagine how big Everest really would be - 20 times higher than the Malvern hills we were actually looking at (pretty impossible to imagine actually).
One thing led to another - tectonic plates pushing together to create mountain ranges ... oceanic trenches ... fossils at the tops of mountains ... why it is easier to explore mountains than the sea because of the pressure ... ears popping, etc.
Next thing, my other daughter zips off to tell her grandmother that we've got some blue tits nesting in a box in our garden. I then hear her say that this is amazing because it had only happened because she was born. Because, then she had a birthday so she was given the nest box so the birds had somewhere to make a nest and have babies.
Looks like humans can't help seeing things from their own perspective...