The day you were born, you had a full set of neurons, the same as you do now! So why couldn’t you play a guitar, walk, or even talk?
7:44 · Human Body
Brain cells are like a railway system, and each station, or cell, is useless unless it’s connected to the rest of the system by a track. You start out life with very few “tracks,” or paths. That’s why babies are so helpless. Your brain creates new paths as you learn and remember, and these shortcuts help you to think faster and better.