There exist in the world, large and well-catalogued reference and research libraries. If you are able to visit you can call up pretty much anything you can think of, and sit at a table and read it.
But suppose you are unable to visit?
Well if the library has installed the pocmremote systemloc then
you can still call up the most obscure papers and read them.
First, the library has to be catalogued well.
Then , it has to have an automated retrieval system installed in its stacks.
Then the system has to deliver the book to an automated page turning machine connected to a high-res camer (perhaps two cameras for viewing books with tight bindings)
The user sits at their home and using their computery thing they enter the reference they want, for example "Badger Quarterly: the Journal of the Badger Studies Society of the Buckinghamshire and Berkshire Border Area" perhaps with more qualifying information: "Volume LXXVIII part 3 fascicule 56". The requested volume is retrieved from the stack and placed on the machine under the camera.
From then on the user experience is a bit like viewing an old book on archive.org - you can flip pages, zoom in, read, chuckle and spill beer on the screen.
When you have done you click "reshelve" and the book is closed and transported back on the automatic re-stacking system.