A discussion changes direction based on a minor point rather than addressing the major issue. What is this called?

When a discussion shifts focus due to a minor point rather than engaging with the core issue, it is termed "diversion." This tactic involves redirecting attention away from the main topic, often leading to confusion or an inability to resolve the original issue at hand. The goal of such a strategy may be to evade responsibility or to distract from the argument that requires substantiation or challenge.

In this context, diversion undermines productive dialogue by prioritizing tangential aspects rather than tackling the significant matters directly relevant to the discussion. Therefore, identifying this shift is crucial for maintaining the integrity of a debate or conversation, helping to ensure that participants remain focused on the substantive issues that truly matter.

The other terms provided relate to different logical fallacies or argumentative strategies but do not capture the essence of a discussion being sidetracked by minor details in the way that "diversion" does.