Information is knowledge, and knowledge is power. If you want someone to rally to your cause, support your position, or put you in a position of authority, you need to be able to back up your positions and sway others from theirs. The trouble is, not every point has supporting data, and not every opinion is swayed by facts. That doesn’t have to slow you down though. Here’s how to find data to support any point, even the ones you disagree with, so you can better inform your own.