english: In fact, this year alone, advertising is 137 billion dollars, and to optimize the ads that are shown to us, companies have to know everything about us.
non_english: V skutočnosti len za tento rok reklama predstavuje 137 miliárd dolárov a na zoptimalizovanie reklám, ktoré sa nám zobrazujú, musia firmy o nás vedieť čo najviac.