Endless scrolling is nothing like a sci-fi gadget. Grandma probably enjoys reading books. She knows what a page is. Endless scrolling is an explicit rejection

Endless scrolling is nothing like a sci-fi gadget. Grandma probably enjoys reading books. She knows what a page is. Endless scrolling is an explicit rejection of skeuomorphism. Old UIs were designed exactly in the way you describe. And old people liked them. The traditional desktop experience has never really been dethroned.