In a digital system, I do not need to record backlinks (2:34) manually if I use a note taking software which automatically does it for me.
³²Often the context in which we are working suggests a multiplicity of links to other notes. ³³This is especially the case when the card index is already voluminous. ³⁴In such cases it is important to capture the connections radially, as it were, but at the same time also by right away recording back links in the slips that are being linked to.