Nice comparison. I'm also familiar with "70% solution". One thing to add: officers, and hopefully business leaders, are taught how to build a theoretical list of what approximately 100% of the information, questions and answers might be...That way you know what 70% is in reference to. This is taught and one can easily memorize the checklists of decision making questions (it's a mnemonic device).

To see why this matters imagine: Are we looking for 70% out of 5 questions? or 70% of 10 questions we have? If you think you only need to answer 5 questions before making a decision and answer 4. That's 80% and you would go...But if there are 10 questions to ideally check off before deciding and you only answer 4, that's way too low and dangerous. This is dangerous in the military and in startup land. Knowing the full list of questions to ask is more important than knowing the answers.

Lastly, both Amazon and the military have huge structures, plans and support teams in place to encourage 70% as an OK threshold. Imagine if you have air support you can call in the marines should things go wrong, or you have your parents couch to crash on if your startup fails, those things would help a person be comfortable going on only 70% of the information.