> LTV or sale conversions. A long sales cycle means you might not have data for optimization until 60 days later... I can’t believe it’s 2019, people still don

> LTV or sale conversions. A long sales cycle means you might not have data for optimization until 60 days later... I can’t believe it’s 2019, people still don’t know how to estimate LTV. The paper my company used for accurate LTV estimation needed 3 days of data, not 60. And it was written in like, 1987? What do you think Facebook uses to optimize creatives so quickly?