There is indeed an analogous process in the brain. "The number of synapses in the brain reaches its peak around ages 2-3, with about 15,000 synapses per neuron

There is indeed an analogous process in the brain. "The number of synapses in the brain reaches its peak around ages 2-3, with about 15,000 synapses per neuron. As adolescents, the brain undergoes synaptic pruning. In adulthood, the brain stabilizes at around 7,500 synapses per neuron, roughly half the peak in early childhood. This figure can vary based on individual experiences and learning." -- written by GPT-4o Confirmed by e.g. https://extension.umaine.edu/publications/4356e/ https://extension.umaine.edu/publications/4356e/