This document discusses big data and surveys. It notes that more data is now created and transferred daily than was stored in 1996. Big data brings challenges like testing hypotheses, requiring significant processing power and time. Surveys allow representative data collection from large populations in a structured way, though questions must be carefully designed to be actionable, differentiating, and linked to business outcomes. Building effective habits may take 2-8 months. The document explores possibilities with big data like predictive modeling and sentiment analysis and emphasizes the importance of employee engagement.