“…most decisions should probably be made with somewhere around 70% of the information you wish you had. If you wait for 90%, in most cases, you're probably being slow.”
Decisions at 70%
From Jeff Bezos’s 2016 Letter to Shareholders (Amazon, 2017), the second of four points in his “High-Velocity Decision Making” section.
The 70% number is the headline; Bezos’s next sentence is what makes it usable: “Plus, either way, you need to be good at quickly recognizing and correcting bad decisions. If you’re good at course correcting, being wrong may be less costly than you think, whereas being slow is going to be expensive for sure.” Without course-correction muscle, 70% would be reckless. The advice depends on the Type 1 / Type 2 framing from the 2015 letter: the decisions worth deciding fast are the reversible ones.