👉 In computer science, a pseudocritical node is a special type of node that is used in the context of network protocols and systems to implement certain functionalities. A pseudocritical node acts as a "black box" on the network layer, allowing for more efficient communication between different nodes by bypassing the edge nodes. Pseudocritical nodes are typically used for tasks such as message passing or error handling in protocols like TCP/IP, where the underlying protocol is designed to be secure but not necessarily reliable