What is reachable?

"Reachable" means that something or someone can be accessed, contacted or reached physically, metaphorically, or virtually. Reachability is often used in the context of networks, communication, and technology, where it refers to the ability of devices or systems to connect and communicate with each other. In computing, a device or a network that is reachable can be accessed or pinged by another device over the internet or a local network. Reachable IPs and addresses can help identify issues with network connectivity, troubleshoot errors, and enable remote access and support. In a broader sense, "reachable" can also refer to being approachable, open, or accessible in different social or personal contexts.