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Unlike fishes or worms, most of our wires cannot be grown again after childhood. Logically, the more wires we have, the faster, the more accurate we respond, right? However, the good news is, we can always add more 'wire connectors'. We do not really have to grow new wires. These wires form basic function, like lifting your hand, or tilting your head (even a baby can do that). Scientists believe that even if we have the brain of a fish, we can still button our shirts! But that is as long as we add wire connectors. Fishes do not have as much wire connectors as in humans hence they do not wear shirts. Adding more wire connectors will strengthen the connection. In science we call this 'synaptic plasticity', the strengthening of synaptic connections. A strengthened connection allows you to respond faster, more accurate, and with less effort.