The Network Nervous System (NNS) is an open algorithmic governance system that controls the Internet Computer network. A few of its most notable innovations are its ability to upgrade the protocol and software used by the node machines, onboard new node operators and machines into the network, and create new subnets (aka blockchains) to increase network capacity. Most importantly, the NNS works by accepting proposals and deciding to adopt or reject them based on voting activity by thousands of “neuron” holders.