/sci/ - Science & Math

Luck.

you only have to live to your mid-20s to surpass replacement rate, even if disease suck and all most of them won't kill a 20 year old

>>15477323
The same way animals survive on raw meat.

https://www.youtube.com/watch?v=4es9DbDpPq0

>>15477421
I’m scared of death now

they had like 7 children by the time they were in their 20s

>>15477448
Chilluns pls

>>15477323
Basic survival:
Running water == good.
Still water == no drink
Food storage:
Salt the shit out of it.
Else make it on the spot.
Boil the shit out of everything.
Done.
Ffs anon this stuff isn't neolithic secrets, it's how people lived not even like 200 years ago.
Or even somewhere remote today.

>>15477472
salt just freely available and other diseases and hygiene problems completely ignored! also running water everywhere of course why didn’t I notice

>>15477472
drinking still water is a hack for immunity
just don't get sick bro

>>15477421
I don't get how the green brothers are leftist onions boys but it's actually really comfy to watch them

>>15477493
shill, eating shit is good for immunity against shit!

>>15477323
Water storage? Like in a cistern?
I have seen rock cisterns, they just have rainwater, theres nothing nasty there since bacteria need a food supply, just water isnt going to breed bacteria.

>>15477323
Predator-prey relationships only work when both partners are alive.
https://en.wikipedia.org/wiki/Lotka%E2%80%93Volterra_equations

>>15477492
Hello, replier with dogshit arguments
>salt just freely available
I said:
>Else make it on the spot.
As in don't store food after it is made.
You ignored this point because you're a retarded faggot.
>also running water everywhere of course why didn’t I notice
Indeed you did not notice, because you are a fucking animal. Civilization started around rivers, and this is noticeable even today. If there's not even a small stream around people look for hidden sources. If there are none, people generally don't fucking live there and you indeed did not notice this because you are a god damned baboon animal.
>and other diseases and hygiene problems completely ignored!
Unlike your dysgenic baboon looking body and despite the modern standards of medicine, human beings survive just fine weathering diseases and what the likes of you consider unhygienic environments, especially considering more primitive conditions imply less contact between humans in general. This in in fact how every other animal on this planet does it. Perhaps you might remember that human beings have, generally speaking, an innate aversion to insects, feces, urine, corpses, and strangers, amongst other things.
A little further reflection will soon give you the idea that living in the wild is far more hygienic than modern living, and this was well apparent in cities before the advent of modern chemistry and medicine to bail us out.
You fucking idiot. You god damned baboon retard. I wonder if you're capable of learning at all.

>>15477323
>How did we manage to live through thousands of years and make populations of millions living like this?
Barely. While not all at once, people did eventually figure out how to transport their food long term. Possibly well before humans, as early as H. Habilis. You can also preserve food without salt, and without cold, such as by drying and fermenting. Fermented fruit and similar may have been either central to our evolution and apparent vast capacity for alcohol tolerance or somehow coincidental, for example. I'll go from more recent examples to speculative/indirect.

Examples of various dates and speculation or more directly known include
https://en.wikipedia.org/wiki/Bog_butter
https://en.wikipedia.org/wiki/Pemmican
Various methods of fire/sun/cold drying https://en.wikipedia.org/wiki/Food_drying
https://en.wikipedia.org/wiki/Fermentation_in_food_processing

On a more technical level and apparently conjoined with development of pottery culture https://www.journals.uchicago.edu/doi/full/10.1086/716610
On the subject of fermentation and our evolutionary ancestors https://www.frontiersin.org/articles/10.3389/fevo.2020.00025/full
Homo geographic range was limited by the extent of its food preservation and cultivation. While most speculative, our digestion changes from H. Habilis to H. Erectus are comparatively very rapid and suggestive of very early adoption of fire and food preservation. Same goes for geographic range, but again for Habilis needing indirect evidence more due to how long ago it was e.g. Oldowan tools. While Australopithecines were limited to small areas in Africa, Habilis and Erectus extended into Europe and far into Asia.

Point is, it is probably not just humans but Habilis and Erectus using at least fire and sun drying. Else biologically they'd not have had the energy, and you need preservation to travel as Habilis must have too. Not new ideas either,
https://pubmed.ncbi.nlm.nih.gov/28548424/
https://pubmed.ncbi.nlm.nih.gov/19732938/

>>15477323
Immune system RNG

God

>survived and populated the earth without 800 childhood vaccines
Kinda makes one think...

>>15478072
child mortality was high historically, even in Europe just couple hundred years ago the average woman lost 2-3 of her children
and contrary to what some people here vaccines do not cause SIDS but reduce its incidence

>>15478072
>Kinda makes one think...
About the insane ~30% infant mortality rate, and where ~56% or more didn't make it past adolescence?

>>15478079
>Muh 78% prehistoric records
I can make up numbers too, hun

>>15478082
>I can make up numbers too, hun
Okay go ahead and try and get them published see how that goes for you if you think it's as simple as "making shit up". For that matter mind explaining how mortality figures align between species and why that's somehow coincidence too?
https://www.researchgate.net/publication/256641936
>Old World monkeys have an average IMR of 36.1% and an average JMR of 42.7%. The IMR and JMR of New World monkeys (58% and 63%) and lemurs (49% and 67%) are the highest of all primates. Thus the pattern of human infant mortality appears to be similar to that of Neanderthals, chimps, and gorillas, but not to orangutans or bonobos (lower) and other primates (higher). In very rough terms, there appears to be a phylogenetic relationship with IMR and JMR as species more closely related to humans have more similar mortality rates.
All of which coincidentally also aligns to modern day hunter-gatherers, coincidentally to burial sites and population estimates, coincidentally to literally every single thing we know about the modern, historic, and prehistoric world?

Made up numbers. Suuuure. Cope and seethe dipshit.

>>15478092
>muh modern monkeys are literally the same as me
And yet 90%+ of animal testing results has no application or relevance to human trials.
Try again, sweetie. Also you wrote allat and I didn't read even a single line.

>>15478097
>I hate science
Why are you here? /x/ is that way >>>/x/

>>15477472
>>15477492
literally there is running water almost anywhere that isn't a fucking desert.
It's also why most people lived by water.
allow me to further explain
fermenting food was very common and it's still done today.
You can also subsist from eating plant matter and animal blood.
Sorry but your food today does not go through rigorous disinfecting.
Not even your hygiene is disinfecting.
We consume bacteria, it does nothing most of the time.

>>15478073
>the average woman lost 2-3 of her children
Its called living in poop

>>15478134
no.

>>15478195
poop kills

>>15477323
Diseases that kill all their hosts die with them and go extinct. Common flu viruses are evolutionary successes unlike the bubonic plague.

>>15478504
it wasn't "poop"

>>15479834
shill, "bubonic" is just "tumors"