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Shouldn't kids with grandfathers have an evolutionary advantage?

They didn't say drops to zero, but the advantage is obviously more limited

If it wasn’t in the past, I imagine it will be in the future with how common two working parents is now. We want more kids but we are getting zero grandparent help

Two working parents have far below replacement numbers of children, so it would actually cause it to disappear…

Probably barely, and I think in some instances the opposite. You have to care for the elderly.

Grandparents used to be 40ish when their grandchildren were born.

The grandmother hypothesis https://en.wikipedia.org/wiki/Grandmother_hypothesis is reasonably well-established. The corresponding 'grandfather effect' has not really been demonstrated, as far as I know. https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2007...

when humans were still primarily subjected to natural selection the life expectancy likely wouldn't have allowed for many grandfathers.

You only have to live to your 40s to become a grandparent in natural conditions, and your chances of living to at least your 50s have always been pretty good conditional on living long enough to reproduce at all.

Your 40s? A man could pretty easily be a grandfather at 26-28, possibly less.

Perhaps less common but 30s would probably be more likely.


Iirc, historically, if you made it to 10 years of age, most humans make it to 60

Medieval burial grounds, when examined by anthropologists, do contain some people over 60, but the majority of adults buried there died earlier, typically in the 45-55 bracket.

It wasn't just disease, but also wars and famines. And in women, deaths during childbirth, which cluster in the 20-35 bracket.

Cardinals of the Church, who led peaceful lives, didn't give birth and never went hungry, lived into their late 60s and early 70s even during the Middle Ages. But an average peasant wouldn't.


Probably improved more with lots of siblings from a wide age range. The bigger siblings would do productive work, the younger would take care of the little ones.

The problem there is with your definition of grandfather. Currently, the age for a grandfather in developed countries is 55+. For most of humanity's history, if there were grandfathers, they would barely make it to 55 years of age.

No, plenty of people made it to that age in the past. Life expectancy was significantly depressed by infant mortality.

> in the past

What's "in the past" here? Last 200 years? 500? 1000? In evolutionary scale, those numbers are a blip.


Same here. My wife and I are both unable to login due to a forced password reset and password-reset emails that never arrive.


Or different instances of the site on the same server, serving different locales. Only one instance would be running at a time.


The Markdownload browser extension is super useful for saving webpages as Markdown: https://addons.mozilla.org/en-US/firefox/addon/markdownload/


I wanted to like MarkDownload, but unfortunately it doesn't auto-add provenance when copy-pasting selected text blocks, at least out of the box.


I thought they were overpriced until I looked into building one myself. The heat sinks were going to be really expensive. The LEDs and lenses weren't cheap either.


I bought some switches from aliexpress for my Logitech G203 and replace them when they fail. I've had it for 5 years now.


Seems like a pain to install. I'm looking forward to this being packaged for Debian.


I use Blender for CAD. It's not designed for that, but I've developed a particular workflow that fits my needs quite well. I use it to design everything from small parts to buildings. I've used FreeCAD, but it's just too time-consuming.


You're so wrong. With only protein and fat, they would not be able to gain much weight. I've tried to gain weight on low carb/high fat, and it doesn't work. I was uncomfortably full after every meal. My tracking showed a significant calorie surplus, but my body wasn't absorbing it. Adding in more carbs made a huge difference. Hormones tell your body when to store fat.


Did you know that bodybuilders in the 1950's(before anabolic steroids) used the egg and steak diet before contests as cutting diet to get lean? They would eat, as the name suggests, large quantities of steak and eggs with butter and have a carb refeeding day every 4 days. They would get really lean on a very high-calorie diet, think 4000 to 6000 calories.

The inventor of diet famously lost a contest for being too lean.


I have been locked out of websites for solving a captcha so quickly that it thought I was a bot. So we went from requiring humans to solve a puzzle that bots can't to now requiring that humans solve the puzzle slower than bots do.


The most funny thing about this limit is that it's self-reinforcing. Bots will learn to sleep() and wiggle the mouse. Humans will learn to wait. Everyone will be worse off.


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