I read the whole thing without falling asleep. Here are my main takeaways:
* infants and juveniles need more omega3/omega6 fats during development; however, once you reach maturity your need for them falls way off
* as an adult, you effectively do not need any EFAs but there is no strong reason to studiously ignore them; you'll get sufficient PUFA from beef (5%) and lamb (10% but a higher omega3/omega6 ratio) to satisfy any need your body has for brain, eye, or other maintenance requiring those fatty acids
* infants and juveniles need more omega3/omega6 fats during development; however, once you reach maturity your need for them falls way off
* as an adult, you effectively do not need any EFAs but there is no strong reason to studiously ignore them; you'll get sufficient PUFA from beef (5%) and lamb (10% but a higher omega3/omega6 ratio) to satisfy any need your body has for brain, eye, or other maintenance requiring those fatty acids