english: And so the lesson is this: it doesn't really matter what you're selling; you just have to think about who is your customer, and what are the messages that are going to get them to change their behavior.
non_english: Tako da je lekcija ova: nije bitno šta prodajete, samo morate da razmislite ko su vaši potrošači, i koje će poruke da ih nateraju da promene ponašanje.