The Scan Visor is not just for combat; it's your primary tool for uncovering the rich lore of Aether. Scanning every creature, object, and environmental element provides valuable insights into the history of the Luminoth, the origins of the Ing, and the tragic events that led to the planet's current state. Completing your Logbook by scanning all entries is a significant side activity and often a requirement for 100% completion.
Pay special attention to Luminoth Lore entries, which are often found on ancient terminals or holographic projections. These entries provide crucial context for the main story and explain the purpose of various structures and technologies you encounter. Scanning enemies reveals their weaknesses, which is vital for efficient combat. Don't rush through areas; take your time to scan everything, as some entries are easily missed and cannot be rescanned once you leave an area.