All these people seemed to do was talk! It supposed it was just what biologicals did. If you wanted to feel you were still somehow in control of a ship or a fleet or even your civilisation, talking amongst yourselves seemed to be the way you convinced yourself of it. Finally
The characters in "The Hydrogen Sonata" by Iain M. Banks focus primarily on conversation, which seems to be an inherent trait of organic beings. Their dialogue appears to serve a purpose beyond mere communication, as it helps to create an illusion of control over their surroundings, whether it's a ship, fleet, or entire civilization. This reflects a deep-seated need for assurance and connection among individuals.
The emphasis on talking highlights a larger theme of the book, suggesting that the act of discussion is a means of coping with uncertainty in a complex universe. Through interactions, characters navigate their realities, reinforcing their sense of agency while grappling with the implications of their existence and choices within the vastness of space.