What the hell is the difference between ad tech and marketing tech?

What is advertising technology? What is marketing tech? Do the terms overlap, and why should ad or marketing professionals care?"Ad tech and marketing tech are like peanut butter and chocolate," says Jake Sorofman, research vice president at Gartner. "Ad tech targets anonymous audiences, while marketing tech generally targets known customers."If only it were all that simple. The fact is all of the minute differences between ad tech and marketing tech aren't as important as what the technologies