The discussion centers on the feasibility of creating a vacuum in a drilled hole to prevent pressure changes and influxes from formation fluids. Participants clarify that while the idea of removing air from a borehole is raised, it is fundamentally flawed because formation pressure remains constant regardless of air presence. Drilling fluids are essential for balancing formation pressure and preventing kicks, as they are denser than air. The notion that removing air would make formation fluids less dense or reduce pressure is dismissed, emphasizing that formation fluids are incompressible. Ultimately, the consensus is that the surrounding pressure would not allow for a complete vacuum and would likely collapse the hole if attempted.