Neurons have synaptic plasticity, which means that as you learn, you change the “weights” in your brain.
Today’s large language models such as ChatGPT are a type of neural network. If you look “under the hood,” Sejnowski explains, what you find are simple units that look a lot like the neurons in the brain, connected together with weights that are variable, much like the synapses between neurons. Neurons have synaptic plasticity, which means that as you learn, you change the “weights” in your brain. Large language models are trained on data in much the same way.