According to Stringism, information can indeed disappear. Although everything is built on the knowledge present in the universe, and that knowledge and history help determine what arises and how something develops, that knowledge also has to be fed.
The less something is used, strengthened, or fed, the more the string itself will weaken. It will slowly begin to fall away, wear down, or lose its energy. Not necessarily all at once, but gradually, until the structure that formed the string no longer exists as it once did.
We can also look at the nature around us for this. When we die, when our soul leaves us and our knot of threads slowly unravels, our body will also begin to decompose and, over time, cease to exist as the structure it once was. The matter remains present, but the body itself disappears.
We see the same with something as simple as a wool thread. A thread can slowly begin to fray, break apart into smaller fibers, and eventually lose its original form completely. What was once one recognizable thread no longer exists. Only smaller components remain, and they may one day come together again somewhere else in a different form.
We also constantly see in nature that the natural state is chaos. It is even one of the fundamental laws of nature. What is organized and built up needs maintenance, energy, or nourishment to preserve that structure. Without that nourishment, it slowly begins to fall apart.
Within Stringism, we do have to introduce the concept of energy.
Although the history, knowledge, and meaning of a string can ultimately disappear when that string falls apart completely, that does not mean that everything truly vanishes. The energy needed to form that string remains present in a minimal form. After all, you cannot create something from nothing, but you also cannot simply make everything disappear into nothing.
That energy by itself, however, has no meaning. It no longer necessarily contains the memories, knowledge, or identity of the original string. At that point, it is, in a sense, meaningless and unstructured.
Until something happens again somewhere, an event, a birth, a memory, a thought, or another change can draw that energy back in to form a new string. Different strings can then come together again and create a new knot.
What emerges is not necessarily a continuation of what existed before. The original information may have disappeared. But part of the energy that once helped form that old string can become part of something new again. Something new is therefore formed by strings, carried by the context in which it arises, such as the birth of a soul. Those strings themselves arise on a lower level through an event that is impactful enough to create a string that may later become the basis for something larger. If we look at birth for a moment, the strings form different knots that then follow the soul or a person. But that event will also draw in energy to make new strings. On the one hand, to link the birth to its original knots or parents. On the other hand, to make the birth unique as well.
Within Stringism, disappearance therefore does not necessarily mean that everything is lost. A string can disappear. Its history can disappear. Its meaning can disappear. But the energy from which it was built can be taken up again into new strings and new knots.