They multiply the skills of the people around them. They make everyone else better. It can be via a tool, a process, good code review, opening a path of knowledge, being supportive, giving confidence, listening well, or any number of other things.
Gandalf in the battle of Minas Tirith is a huge force multiplier. He embiggens the courage of everyone near him and makes them fight harder and better.
Gandalf in the battle of Minas Tirith is a huge force multiplier. He embiggens the courage of everyone near him and makes them fight harder and better.