still pushing that boulder up that damn hill

eyes hit serious diminishing returns wrt resource costs vs vision quality as they get bigger, so the question became: what the FUCK do giant (and colossal) squid need to see so badly that they couldn't see with swordfish-sized eyes that's justifying that massive energy cost? that nothing else in the deep ocean needs to see so fucking badly??

turns out the one strength eyes that big really have over much smaller eyes is: seeing large glowing objects in water deeper than 500 meters from an appreciable distance.

sperm whales are the primary predator of giant squid. sperm whales don't glow. BUT! water that deep is full of bioluminescent creatures-- these creatures light up when bumped into. something a sperm whale's size is continuously bumping into those critters, it's just surrounded by a glowing field all the time when it's swimming at those depths, visible from a distance-- if you have the right eyes-- as a massive glowing shape. so basically the only reason to have eyes the size of soccer balls is if you live in the deep ocean and your life depends on having a heads up when a hungry sperm whale lurking around

Well actually YES but also:

Restricting food Does Stuff To Your Brain. "Restricting" doesn't mean stopping when you're full. I feel like this is what gets misunderstood a lot. It means placing rules and limits on food that supercede what your body is signalling that it wants. Let's use cookies as an example. Restricting would be:

- I can only have cookies when I deserve them.

- I can only have cookies when I'm alone.

- I can only have two cookies.

- I can only have low-calorie cookies.

- I can only have cookies on set days, or so-called cheat days.

- I can't have cookies.

- I can't have cookies in the house.

- I'm bad when I eat cookies.

- Cookies are a bad food and I must compensate for having eaten them.

Whether or not you stick to the restrictions you set, your brain is learning to be an anxious mess around cookies. It might want to avoid anywhere that has cookies. It might feel shame for wanting or eating cookies. It might get exhausted from suppressing the craving and decide to binge. It might go into binge mode every time you eat cookies because you've taught your body that This Will Not Be Available Whenever. It might feel ridiculously important to eat all the cookies while you can.

I know we're all so used to constantly talking about food, diets, weight and bodies, and it's completely normalised to look at absolutely everything you eat and assign it the level of guilt you're gonna feel for eating it, and to brag about not eating this and that, and to announce that you know it's a Naughty Indulgence when you eat anything sweet.

But oh my god, it's such a huge weight off your shoulders to just let yourself eat cookies because you wanted cookies and stop when you feel satiated and know that the cookies will be available next time you want cookies because you don't need to earn them in any way. Because a brain that knows it can have cookies whenever it wants cookies, doesn't crave cookies all the time. Nor does it feel any self-loathing when it does crave cookies.