text: Imagine you need a dress for the dance on Friday. You ask a couple of your friends what dress you should get. They sent you a list of dresses and you decide that you like the navy one. You go to the store and they tell you that they are all sold out of the navy dress. Normally you would be screwed, but then you remember they sent you a whole list. You also liked the pink one so you decide to get that one. When you ask multiple people you can have a back up plan if one doesn't work out.