Zuckerberg is walking through his mindset in February 2012 when he was considering acquiring the rapidly growing photo app. He asked colleagues if a purchase might be worth it even if it costs $500 million. “Theoretically we could go build this technology, but I’m worried we’re so far behind,” he wrote. Zuckerberg testifies he was considering this move ahead of their IPO when, for the first time, the company would have money to consider buying some products.