The brain’s secret to lifelong learning can now come as hardware for artificial intelligence

• When the human brain learns something new, it adapts. But when artificial intelligence learns something new, it tends to forget information it already learned.
•  computer chips could dynamically rewire themselves to take in new data like the brain does, helping AI to keep learning over time.
•  a new piece of hardware that can be reprogrammed on demand through electrical pulses. 
• 通过电子脉冲来控制芯片内部氢离子的浓度，当中心位置的氢离子浓度较高时，芯片的表现接近于神经元；而当中心位置的氢离子浓度较低时，芯片的表现更像突触。
  • When the device has more hydrogen near its center, for example, it can act as a neuron, a single nerve cell. With less hydrogen at that location, the device serves as a synapse, a connection between neurons, which is what the brain uses to store memory in complex neural circuits.
• This neural network uses “reservoir computing,” which explains how different parts of a brain communicate and transfer information.