What altitude could pose a potential problem while navigating near another aircraft?

Navigating near another aircraft can be challenging at any altitude, particularly in conditions of poor visibility. When visibility is limited, pilots may struggle to visually acquire other aircraft, increasing the risk of mid-air collisions. Situational awareness is crucial for maintaining safe distances between aircraft, and without clear visibility, it becomes significantly harder to assess one's surroundings.

In poor visibility conditions, factors such as weather, light conditions, and the presence of obstacles can all complicate a pilot's ability to navigate and communicate effectively with nearby aircraft. Thus, recognizing that any altitude can be problematic highlights the importance of situational awareness and caution in varying conditions rather than focusing on altitude thresholds.