Every skill takes time to train. More complicated skills (logically) take longer than simpler ones. Flying a basic ship is easy (for a capsuleer); flying a Capital-class ship takes much more effort. Within the game mechanics, this is simulated (or mapped) by assigning a 'training multiplier to skills. As the name implies, the multiplier is the extent to which the skill takes longer than a basic Level 1 skill. A skill with a multiplier of 2 takes twice as long; one with a multiplier of 5, 5 times and so on.