kulmar
kulmar
kulmar

Cost. Transfer is expensive because it generally requires many humans to make it happen. Then the digital preservation begins, which is also expensive. Many many things have been digitized, but most of the public prefers not to spend any money on anything, so we are limited. Also, “very old” documents, as you call

This guy never needed a robot to do his job!

You don't fool us Máté... We all know you are not at Le Mans and you just took a picture of a Kit Kat Bar you found on the floor of the Jalopnik headquarters.