More precisely, that unreasonable man must add sufficient extraordinary value to his product to convert complacent users into willing defectors. Thus you must

More precisely, that unreasonable man must add sufficient extraordinary value to his product to convert complacent users into willing defectors. Thus you must convince users that 1) FB is clearly inferior to your product (e.g. many important hidden demerits) or 2) your product adds something essential that's absent in FB. Otherwise, why switch?