Besides the brain there are Systems that are made from another matters. I feel that Systems.
Yea, sure, prove it. Voila. Don't think that the neuron system is that perfect and all can. Each new connection between the cells alters the meaning of the connection that already was made to imprint something else. Each connection between neurons occupies space in the brain, so the possible number of connections is not that big. Cells, which are located far apart cannot be connected to each other easily, a lot of such connections would take up all the brain space very quickly.
Human can remember his entire life. There are 100M cells in the eye. Count how much visual information the brain must store. Think how it could be stored.