Yes, I also appreciate the opportunity to create links in the PIM. Pim already has to make simple links using flags and related links. This is very good and is enough for simple cases. But there is something else. I will try to explain how I understand it. Each element of the database can carry not one, but many data sets, which differ in meaning. For example, a diary entry about a weekend could have the following data sets:
When a record is made, you do not need to create static links with other elements of the database. But you need to create open ports of entry that can accept a uniform connection.
Each link has its meaningful name. Such connections are not what already exists, but they are what may appear at any moment, if necessary. These are tags.
Suppose we want to find elements connected at the same time by two connections: contact and season. Then the open ports of the elements will respond to the request and we will receive a report from which it is clear that with a certain contact we meet more often in the summer. Or eat more meat in the winter.
If the report is transmitted in NoteBoard, it will look very clearly. And also in NoteBoard it is very convenient to immediately start brainstorming on the solution of any task related to the obtained data set.