The concept addresses methods of conveying information or documents through tangible, non-digital means, offering a contrast to electronic correspondence. Examples include traditional postal services, courier deliveries, or even the hand-delivery of documents.
These methods provide options where security concerns regarding digital communication are paramount, where a physical record is legally required, or when dealing with individuals lacking reliable access to electronic technology. Historically, tangible communication predates electronic methods, serving as the foundational means for information exchange across distances and time.