The present invention relates to a process that enables nearly real-time exchange of instant simultaneous messages between the users of a digital communication network. Instant Simultaneous Messaging enables “real” simultaneous exchange of contents between the users over a subject. This simultaneous exchange ensures that each user can access other users' contents with exactly the same order, e.g. privilege. Therefore, none of the users within a simultaneous conversion can be affected by other users' messages. The purpose of instant simultaneous messaging is to heal herd mentality by enforcing novelty/originality to the contents that are exchanged between the users. Therefore, while users are communicating over a subject simultaneously, a given user can not learn or get affected by other users' opinions before disclosing its own. The present invention provides a method and its apparatus for Instant Simultaneous Messaging between a sending user and a target user over a digital communication network.