He showed me how as a fighter pilot he was trained to spot other aircraft.
When one would show up on the radar he would point and be like see that plane over there? I could never see it until we were very close and I have great vision and no glasses.
After a few times of this game he then said, "Now when you are looking for another aircraft you don't focus on where it is, scan your eyes left to right horizontally".
Now I was able to pick out the what seemed like 1-2 pixel dot in the distance by not trying to focus on the dot but look at everything else and your brain somehow figures out the anomalous pixel/dark spot against the horizon.
It reminded me a lot of when I was a kid bird hunting how my dad would try to point at the partridge and it was the same game. You try to focus directly at them and it was hard to see them in the brush, but scanning your eyes back and forth helps make them pop out and be visible.
“A Fighter Pilot’s Guide to surviving on the roads” https://www.portsmouthctc.org.uk/a-fighter-pilots-guide-to-s...
> Only a small part of the retina, in the centre and called the fovea, can generate a high-resolution image. This is why we need to look directly at something, by moving our eyes, to see detail. The rest of the retina contributes to our visual experience by adding the peripheral detail — hence peripheral vision. Peripheral vision cannot resolve detail, which prevents the brain from being overloaded with too much information, but it is very good at detecting movement.
> Well, first, it is an unfortunate fact that if you are converging on a given point with another vehicle at the same speed, and assuming that you are both traveling in a straight line, then there is no apparent movement noticeable by the occupant of either vehicle. That is, to the driver of each vehicle, the other will remain in exactly the same position in the windscreen up to the point of impact. There is no relative movement — so our peripheral vision is not suited to detecting it.
> Now for the really interesting part. When we move our head and eyes to scan a scene, our eyes are incapable of moving smoothly across that scene and seeing everything. This makes perfect sense: just like trying to take a picture without holding the camera still. The image would be blurred. So, our clever brain overcomes this by moving our eyes (really fast, remember) in a series of jumps (called saccades) with very short pauses (called fixations and it is only during the pauses that an image is processed. Our brains fill in the gaps with a combination of peripheral vision and an assumption that what is in the gaps must be the same as what you see during the pauses.
Previously discussed:
Many senior non-technical people have a "technical assistant" or similar, a talented generalist who helps wrangle the thousand different technical things the non-technical person needs to deal with.
I've helped several managers over the years write emails and I'm pretty sure they didn't then go tell everyone "Yep, I had help with this email" so I think it be surprising to some folks how often this happens.
Reminds me of a story about fighter pilots from World War 2. Some of the best fighter pilot aces had, at best, average vision. Their coping strategy for this was to find pilots who weren't as good at dogfighting but had excellent vision as wingmen.
Both parties benefited since the better pilot could spot enemy planes earlier and the lesser pilot got to fly with an ace and occasionally get kills they wouldn't have gotten otherwise.