[Philip-J-Fry]

I don't mean writing out a URL...

You could name pages like "Home", "About", "My trip to Paris". And then write on the piece of paper "[link to My trip to Paris]"

Or you could write "[link from Posts]" to add it to a common listing.

You'd basically just create a written form of Markdown.

[claytn]

Oh I misread. That type of linking definitely feels doable. Images & styles are a whole other can of worms though