There were once sea scorpions the size of a great white shark.
Here are the best answers.
Great info to have!

Todd Cravens
In 1958, a 7600 lbs nuclear bomb was lost off the Georgia coast near Savannah.
Its never been found.
When you exhibit obvious symptoms, its too late, your brain is already mush.

If you get diagnosed with alzheimers at 65, you had the disease since your early 40s at least.
And you experienced very mild symptoms but didnt notice it.
And your brain fought like hell to compensate the deficit.
When you get diagnosed, your brain is already very severely damaged and will never recover from the deficit.
Theres some awareness of this, but its not being taken seriously enough!
It lies 150-250 million light years from the milky way, which itself is being pulled towards it too.
Essentially, we have almost no concrete idea of what it is.
We know this from the geologic record.
There is no cure.
We dont understand what causes it.
We dont understand the mechanism of the misfolding cascade.
We dont even fully understand the structure of the misfolded proteins.
foul_dwimmerlaik
NO.
There were once sea scorpions the size of a great white shark.
Spooplegeist
Scurvy
Everyone knows about scurvy, but the reason its so terrifying is usually less know.
You see scar tissue is not permanent, the process to build and maintain scar tissue is constantly ongoing.
When you become vitamin C deficient your scar tissue starts being reabsorbed by your body.
Opening up any and all old wounds.
If you have ever had surgery those internal incisions will open back up.
Cold start, low and slow is key.
all0fherheart
Campus safety
We keep our dangerous bacteria species in a college campus fridge.
Protected by one single lock.
With one power cord.
And the US governments crop insurance programs and incentives all reinforce the bad practices, while discouraging regenerative practices.
The drawdown of the aquifers also causes land subsidence, which causes costly infrastructure and building damage.
The general public does not realize the impending crisis that will be because of the confluence of these factors.
Berkamin
CPR
Whats the success rate of CPR?
The average person assumes 75% or greater.
Why are they scary?
One that never fails to attract the curious.
By the time the little fish notices the light…the angler has already seen them.
WermTerd
Coronavirus
Coronavirus/Covid-19 was not surprising nor unexpected by people working in Public Health.
And its not the worst case scenario by any means.
moxie-maniac
Were running out of Helium
Helium.
Fun for party balloons.
Everybody likes a squeaky voice.
Except helium is a vital component of various high tech devices such as MRIs.
Helium is also lite enough that the earths gravity can not contain it.
And we are running out.
u_Gravida_Vendatur
A bad one
Humans rely on evaporating sweat to stay cool.
If humidity gets too high, relatively low heat can kill humans.
The equivalent of 95F/35C at 100% relative humidity can kill even healthy humans.
This is called a Wet Bulb Event.
By 2050, scientists predict multiple Wet Bulb Events in the North China Plain.
Approximately 400 Million people live in the North China Plain.
DoomGoober
We barely know anything
~94% of the universe is completely out of our reach forever.
Takes some genocidal anger, knowledge tens of thousands have, and about $100K.
This is unlikely IMHO).
2.Accidentally bumped into at an old lab, leaked during cleaning or something.
Forgotten stocks still occasionally found.
Leak spreading very unlikely IMHO.
Methods + difficulty identical to what is published here.
Its totally possible, almost simple to do:
4.
Outbreak is out of hand before its noticed, billions die.
Its kinda like the supervolcano of climate change, not likely but very bad if it happens.
Its pretty terrifying to think about.
Agressive_piano
The ingredients in Botox
Botox is made from botulinum toxin.
The toxin is a neurotoxin that blocks nerve signals to muscles.
Under the right conditions, even a nine volt battery can be lethal.
The shockwave from the blast circled the globe nine times.
The plane that dropped it was given a 50/50 chance of survival.
Yet, the bomb was originally designed to be twice as powerful.
If the wrong brand of litter is used it can cause massive environmental problems.
This mistake has been made before.
ndisa44
Our food is worse
Our food is becoming less nutritious.
Plants take in CO2 gas and convert that into carbohydrates through photosynthesis.
However, the mineral, micronutrient, and protein content of plants is not increasing.
Plants today contain more carbs than plants 100 years ago (generally.)
Cocos4sale
Flying carp are here to stay
The battle against invasive species is generally a lost cause.
No deep water formation, no upwelling.
No deep water formation, no movement of heat on a large scale (theoretically) in the oceans.
No salty water, no deep water formation.
No deep water formation, no conveyor belt.
No conveyor belt, no Gulf Stream, or anything else driven by geostrophic motion.
IrregularRevisionist
Our old friend Russia
Around 100 nuclear weapons went missing when the U.S.S.R fell.
Catlenfell
Cancer
Its not completely unknown but still scary af.
Approximately 1 in 2 people will get cancer.
Look at your friends, feel free to include yourself, half of you will get cancer.
Simsearch
Cold death
The cold death of the Universe is absolutely unavoidable.
Stars will stop shining, and life will cease.
Entropy ensures us is an irreversible process.