What are the 'relative' advantages of the different methods? [=what are the advantages of each method compared to the others?]
The car might seem expensive, but 'it's all relative'. [=the car is expensive compared to some cars but not to other cars]
I'm a 'relative' newcomer to the area. [=I am not really new to the area but I am more of a newcomer than many people]
(..) He is an exemplary Starfleet officer. He'll make a great Captain. It isn't uncommon, you know. Even for a captain, to want to leave. There's no relative direction in the vastness of space... ...there's only yourself. Your ship, your crew. It's easier than you think to get lost. (..)2016 Star Trek Beyond