Science is amazing:
“When we learn new things, PKMzeta shows up at the gaps between neurons (synapses) and strengthens the connections between them. These bolstered synapses are the physical embodiment of our memories, and they are fragile things. It turns out that we need to continually recreate PKMzeta at synapses to keep our memories alive. If the protein disappears, so do our memories. Unlike the text of a book or the bytes of a hard disk, the information stored in our brain is constantly on the verge of being erased.”
