I had not realized that such a fundamental invention had been around that long. It gives me hope, given that some things in IP have gone right, we may hope for more despite the evidence to the contrary.
Bergmayer repeats Hart's fundamental realization about his project. To preserve creations, they need to be endlessly repeated so that there will be lots of copies (unlimited?) for future generations to be able to access and to preserve them from technological change that is already limiting access to some material that cannot be read by the latest computer software. Thus, they need to be kept in a simple and widely accessible form, such as plain text rather than as a PDF.