That net exists only when someone uses it. That is why I wrote about the movement from data, through information, understanding, opinion, belief, right opinion to knowledge. The very same statement can be an opinion and also knowlege. Some will argue that knowlege, like Berkeley's sound in the woods, ceases to exist if a person is not thinking about it. I believe we can say that knowledge continues to exist because while knowledge is also dependant on use, in this case it is dependent upon shared use.
Nothing is knowledge until it fullfills at least two basic requirements.
Observed verification and shared usage of the terms in the presence of the observation. We then know that it can be stored with a full audit trail of these qualifications. Because it takes part in a broad interactive web, any time we use any remotely connected knowledge in our science, we invoke all the other bit with which it is connected. Unfortunately we know that no knowledge is really safe from replacement. It is only a matter of making the appropriate adjustments elsewhere in our theories.