Forecast a video's 28-day views from its first three hours

ForecastingHard

Problem. Three hours after an upload, the sponsor team wants a forecast of the video's 28-day views (sponsors have view guarantees), and the Feastables team wants to know whether to move inventory. How would you build the forecast, and how sure can you be?

Before you reveal: say your answer out loud, as if you were in the real interview — get your reasoning across clearly first. There is no single correct answer: reading what the interviewer is really after and defending your own thinking is what makes an answer strong.