I have done it before in OrgMode
Its very compute intensive; and, more annoying than useful mostly--but I did it many years ago, it would be interesting what percentage of computer resources are now used
But for a very small amount of computer screen real estate you can put a very long scrolling message, for example--which can be very useful if you are trying to deliver an OrgMode buffer as some sort of kiosk interface to yourself or other operators
I'll try to dig up how I did it
Just want you to know that it can be done in OrgMode--what version of Emacs, etc. is required (and why), I'm not sure