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Alexey Turchin, Brian Green Nuclear submarines as global catastrophic risk shelters Foundation Science for Life Extension [email protected]

Nuclear submarines as global risk shelters

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Page 1: Nuclear submarines  as global risk  shelters

Alexey Turchin, Brian Green

Nuclear submarines as global catastrophic

risk shelters

Foundation Science for Life Extension [email protected]

Page 2: Nuclear submarines  as global risk  shelters

Seth Baum Isolated refuges for surviving global catastrophes

http://sethbaum.com/ac/2015_Refuges.html

Nuclear submarines are designed to be robust

survivors

Surface independence criteria: • 0.5 - 5 years autonomy • At least 400 meters below surface • Could move throughout the ocean

Page 3: Nuclear submarines  as global risk  shelters

Turchin, Alexey, and Brian Patrick Green. "Aquatic refuges for surviving a global catastrophe." Futures 89 (2017): 26-37.

Nuclear submarines are designed to be robust

survivors

Military-grade survivability: • Protection from pressure and shock waves • Hiddenness • Air independence • Radiation protection

Page 4: Nuclear submarines  as global risk  shelters

Turchin, Alexey, and Brian Patrick Green. "Aquatic refuges for surviving a global catastrophe." Futures 89 (2017): 26-37.

Nuclear submarines are the cheapest solution

SSBN are cheaper than space colonies: • They are already exist • 1 trillion dollars spent on refining submarine

technology • Collectively thousands of years of experience • Rate of accidents becomes very low

Page 5: Nuclear submarines  as global risk  shelters

Turchin, Alexey, and Brian Patrick Green. "Aquatic refuges for surviving a global catastrophe." Futures 89 (2017): 26-37.

Nuclear submarines designed to survive

nuclear warSubs were designed with nuclear war survival in mind • Blast and EMP protection • Radiation protection • Able to move to Southern hemisphere, where will be less

radiation • Able to go to the equator, where will be less ice in case of the

nuclear winter • Able to survive under ice • Not easy targets

Page 6: Nuclear submarines  as global risk  shelters

Turchin, Alexey, and Brian Patrick Green. "Aquatic refuges for surviving a global catastrophe." Futures 89 (2017): 26-37.

Nuclear submarines are the cheapest solution

SSBNs could serve as refuges while continuing to perform other functions: • Worldwide, there are 20 subs in the sea everyday • Women are already in crews • Addition of seeds, books and data could convert

them into refuges with small investment

Page 7: Nuclear submarines  as global risk  shelters

Turchin, Alexey, and Brian Patrick Green. "Aquatic refuges for surviving a global catastrophe." Futures 89 (2017): 26-37.

Nuclear submarines are better than bunkers• They can move and not easy targets • Could move to the safest place • No looters or “infected friends” • No need for air and water tubes on surface • No heat dissipation problem • Could go deeper because ocean is colder (no thermal

gradient problem) • Already have nuclear power • Information isolation: no Internet on board

Page 8: Nuclear submarines  as global risk  shelters

Turchin, Alexey, and Brian Patrick Green. "Aquatic refuges for surviving a global catastrophe." Futures 89 (2017): 26-37.

Nuclear submarines are better than Mars colony

• They already exist • They are proved to be safe • They are cheaper even in best realisation ерт

smallest Mars colony • Mars colony autonomy is impossible without self-

replicating robots, which creates new risks • Mars colony is easy target in case of war

Page 9: Nuclear submarines  as global risk  shelters

Turchin, Alexey, and Brian Patrick Green. "Aquatic refuges for surviving a global catastrophe." Futures 89 (2017): 26-37.

Nuclear submarines have their own energy source

• 25-50 years of operation for contemporary reactors

• No heat dissipation problem • No need for fuel or air • Could be replaced by water turbines, generating

electricity from currents

Page 10: Nuclear submarines  as global risk  shelters

Turchin, Alexey, and Brian Patrick Green. "Aquatic refuges for surviving a global catastrophe." Futures 89 (2017): 26-37.

Nuclear submarines: own supplies

• Oxygen generation from water • Water desalination • Plankton filtering is possible as source of food

Page 11: Nuclear submarines  as global risk  shelters

Turchin, Alexey, and Brian Patrick Green. "Aquatic refuges for surviving a global catastrophe." Futures 89 (2017): 26-37.

Nuclear submarines could provide survival for

different catastrophes:• Nuclear war with large radiological contamination and

nuclear winter • Biological war or pandemic, especially slow and hidden • Asteroid impacts and nuclear winter • Short term but intense global warming • Mutiny of a drone army • Gamma ray burst • Supervoclanic event

Page 12: Nuclear submarines  as global risk  shelters

Turchin, Alexey, and Brian Patrick Green. "Aquatic refuges for surviving a global catastrophe." Futures 89 (2017): 26-37.

Nuclear submarines will not help for too large high-tech catastrophe

• Unfriendly AI • Grey goo of nanobots • LHC catastrophe creates mini blackhole

Page 13: Nuclear submarines  as global risk  shelters

Turchin, Alexey, and Brian Patrick Green. "Aquatic refuges for surviving a global catastrophe." Futures 89 (2017): 26-37.

Page 14: Nuclear submarines  as global risk  shelters

Turchin, Alexey, and Brian Patrick Green. "Aquatic refuges for surviving a global catastrophe." Futures 89 (2017): 26-37.

Food for 5 years could be stored in missile shafts

• Unfriendly AI • Grey goo of nanobots • LHC catastrophe creates mini blackhole

Page 15: Nuclear submarines  as global risk  shelters

Turchin, Alexey, and Brian Patrick Green. "Aquatic refuges for surviving a global catastrophe." Futures 89 (2017): 26-37.

Ohio-class SSBN has crew of 155

• Minimal survivable population is around 100 • Eggs and sperm could be frozen • Starting in 2010, women joined US submarine

crews

Page 16: Nuclear submarines  as global risk  shelters

Turchin, Alexey, and Brian Patrick Green. "Aquatic refuges for surviving a global catastrophe." Futures 89 (2017): 26-37.

Submarine needs a remote island to dock

• Submarines are good for surviving a short-term, intense event

• Islands are good for long-term survival of medium intensity event

• Islands could be good starting points for human recovery

Page 17: Nuclear submarines  as global risk  shelters

Turchin, Alexey, and Brian Patrick Green. "Aquatic refuges for surviving a global catastrophe." Futures 89 (2017): 26-37.

Levels of realisation of the project:

• Cheap: add some books and seeds to already existing subs,1 mln USD, 6 month survival.

• Medium: convert decommissioned Ohio-class submarine in “Yellow submarine”, 1 bn USD, 5 years survival.

• High: create fleet of the ark-submarines from scratch, 200 bn USD (still cheaper than ISS) - 20 years survival.

Page 18: Nuclear submarines  as global risk  shelters

Turchin, Alexey, and Brian Patrick Green. "Aquatic refuges for surviving a global catastrophe." Futures 89 (2017): 26-37.

Funding• Negative price is possible: Navy could pay

from its advertising budgets for small scale realisation

• Billionaires: Personal refuge + yacht + recreational home + wildlife observation

• Space programs: Nuclear submarines could be test environment for long-term survival in space

Page 19: Nuclear submarines  as global risk  shelters

Turchin, Alexey, and Brian Patrick Green. "Aquatic refuges for surviving a global catastrophe." Futures 89 (2017): 26-37.

Conclusion• Nuclear submarines could be effective refuges from several types of global

catastrophes

• Existing military submarines could be upgraded for this function with relatively low cost

• Contemporary submarines could provide several months of surface independence

• A specially designed fleet of nuclear submarines could potentially survive years or even decades under water

• Nuclear submarine refuges could be a step towards the creation of space refuges

Page 20: Nuclear submarines  as global risk  shelters

The Map of Shelters and Refuges from Global Risks (Plan B of X-risks Prevention)

On the ground

© Alexey Turchin, 2016, CC3.0

Distance from typical habitats

Underground On the sea Under the sea

Antarctic bases

Number of shelters: more than 10Number of people: hun-dredsIndependent survivabil-ity: 1-5 yearsAbility to re-create civi-lization: highVulnerability: mediumBest protection against: pandemics, nuclear winter, fallout

Uncontacted tribes

Number of shelters: around 10 Number of people: tho-sandsIndependent survivabil-ity: thousands yearsAbility to re-create civili-zation: mediumVulnerability: highBest protection against: some types of pandemics

Remote villages

Number of shelters: thou-sands or moreNumber of people: millionsIndependent survivabil-ity: almost indefiniteAbility to re-create civili-zation: highVulnerability: mediumBest protection against: pandemics

Random survivors

Number of shelters: de-pends of type of catastropheNumber of people: un-knownIndependent survivabil-ity: monthsAbility to re-create civili-zation: lowVulnerability: highBest protection against: stochastic events

Air planes

Tesla carswith biosafety

systemNumber of shelters: many thousandsNumber of people: thou-sandsIndependent survivabil-ity: daysAbility to re-create civili-zation: mediumVulnerability: highBest protection against: pandemicPrice: included

“Clever” houses with reinforcement

Number of shelters: mil-lions??Number of people: millionsIndependent survivabil-ity: monthsAbility to re-create civili-zation: highVulnerability: highBest protection against: pandemics, small impacts and nuclear warPrice: high

Mines, caves and subways

Number of shelters: thou-sandsNumber of people: millionsIndependent survivabil-ity: daysAbility to re-create civili-zation: highVulnerability: highBest protection against: explosions and acute fallout

Bomb sheltersand commercial shelters

Number of shelters: many thousandsNumber of people: millionsIndependent survivabil-ity: days, may be weeksAbility to re-create civili-zation: highVulnerability: mediumBest protection against: explosions and acute fallout

Cold war com-mand centers and underground citiesNumber of shelters: around 10Number of people: unknown, may-be hundredsIndependent survivability: yearsAbility to re-create civilization: highVulnerability: could be targeted in warBest protection against: explo-sions, fallout, pandemics

Very deep shelters

1 km deep with independent energy sources

Number of shelters: severalNumber of people: thousandsIndependent survivability: yearsAbility to re-create civilization: mediumVulnerability: low to natural risks, high to human hostile actionBest protection against: pan-demicPrice: very high, many billions dol-lars

Risks: it could be places which benefit from extinction event, start an attack or make secret danger-ous research

ShipsNumber of shelters: many thousandsNumber of people: millionsIndependent survivabil-ity: 1 year for some, may be moreAbility to re-create civili-zation: highVulnerability: mediumBest protection against: explosions, pandemics

IslandsNumber of shelters: thousandsNumber of people: mil-lionsIndependent survivabil-ity: indefiniteAbility to re-create civi-lization: highVulnerability: mediumBest protection against: pandemics

Sea steadingIndependent living communities

at sea

Number of shelters: severalNumber of people: thousandsIndependent survivability: yearsAbility to re-create civiliza-tion: mediumVulnerability: low to natural risks, high to human hostile ac-tionBest protection against: pan-demicPrice: very high, billions dollars

Nuclear submarines

Number of shelters: 10-100Number of people: thou-sandsIndependent survivabil-ity: around 1 yearAbility to re-create civili-zation: highVulnerability: mediumBest protection against: explosions and acute fallout

Specially rebuiltnuclear submarine

(“project Yellow submarine”)

Number of shelters: severalNumber of people: thousandsIndependent survivability: yearsAbility to re-create civilization: mediumVulnerability: low to natural risks, high to human hostile actionBest protection against: pandemicPrice: very high

Risks: could be targeted during nu-clear war

Could provide defence against gam-ma-ray burst with large surface radia-tion levels

Underwater town

seems not to have much value as it would be

vulnerable

International space station

Number of shelters: 1Number of people: 6Independent survivabil-ity: 3 monthes- 1 yearsAbility to re-create civili-zation: lowVulnerability: highBest protection against: short, but covering all earth surface catastrophe (air-borne pandemics)

Moon base

Number of shelters: oneNumber of people: dozensIndependent survivability: yearsAbility to re-create civilization: lowVulnerability: low to natural risks, high to human hostile actionBest protection against: pandemicPrice: dozens of billions dollars

Risks: could be converted into nu-clear military base by state actor, and used in nuclear war, or attacked

Mars base(Musk plan)

Number of shelters: oneNumber of people: thousand or even millionIndependent survivability: indefiniteAbility to re-create civilization: medium, de-pends of robotics and many unknownsVulnerability: low to natural risks, high to human hostile actionBest protection against: pandemics, impacts, earth-limited catastrophes, including collider acci-dents and grey gooPrice: trillions of dollars

Risks: could be targeted in space war or participate in it as actorRisks: transportation fleet could be used as kinetic weaponRisks: opportunity cost because of high price

Orion nuclear powered

generation ship

Number of shelters: oneNumber of people: thousand or even millionIndependent survivability: hundreds of yearsAbility to re-create civilization: medium, depends of many unknownVulnerability: low to natural risks, high to human hostile action, high probability of accidents and failure in-side the shipBest protection against: pandemics, impacts, earth-limited catastrophes, including collider accidents and grey gooPrice: trillions of dollars

Risks: could be targeted in space war or participate in it as actorRisks: the ship itself could explode, be used as a weapon or a source of weapons, as it has 100 000 nukes for propulsionRisks: opportunity cost because of high price

Time

Ref

uges

tha

t ar

e cu

rren

tly

in e

xist

ence

; Ty

pes

of r

isks

: nu

clea

r w

ar,

mul

ti-p

ande

mic

s, s

uper

volc

anic

exp

losi

onCou

ld b

e bu

ilt u

sing

exi

stin

g te

ch in

10-

30 y

ears

Hig

h te

ch s

helter

s ag

ains

t hi

-tec

h risk

s, w

hich

co

uld

be b

uilt a

fter

30-

100

year

s fr

om n

ow

Ship wrecks, rafts

Number of shelters: de-pends of a type of a catas-tropheNumber of people: un-known, maybe hundredsIndependent survivabil-ity: monthsAbility to re-create civili-zation: lowVulnerability: high to natu-ral causesBest protection against: pandemics

Remote moons in So-lar system, comets, asteroids, Oort cloud

Use of self-replicating ro-bots and manufacturing

nanotechnology for build-ing infrastructure, creation

of millions of habitats

Number of shelters: millionsNumber of people: millionsIndependent survivability: indefiniteAbility to re-create civilization: highVulnerability: low to natural risks, high to unfriendly AIBest protection against: pandemics, im-pacts, earth-limited catastrophes, includ-ing collider accidents and grey gooPrice: may be the small, just one first na-norobot

Risks of space war or space grey gooRisks of kinetic space weaponsRisks of extremely large artificial explo-sions inside gas planets or of the creation of very large nukesRisk of wrong command to the whole sys-tem

Distributed net of survivalists

Includes hoards with foodTrained people

Number of shelters: depends of type of catastropheNumber of people: thousands?Independent survivability: monthsAbility to re-create civilization: highVulnerability: highBest protection against: stochastic events, pandemics, nuclear war

High speed nano-starships, starting coloni-

sation waveNumber of shelters: millionsNumber of people: DNA sam-ples or uploadsIndependent survivability: highAbility to re-create civiliza-tion: highVulnerability: low to natural risks, medium to unfriendly AIBest protection against: al-most everything except false vacuum decay and strong UFAIPrice: may be the small, just one first nanorobot

Risks of space war or space grey gooRisks of laser weapons based in space which are able to target everything

Nanotech based homes

are able to with-stand any external influences as adap-tive shield

Nanotech based microscopic

shelters

Deep in Earth’s crust, which are running humans as uploads and are in-visible to any exter-nal hostile surveil-lance.

Immortal bodies

Upgraded human be-ings able to survive in space and any hostile environment

Isolated biospheres

Closed cycle projects

Number of shelters: severalNumber of people: thousands?Independent survivability: yearsAbility to re-create civiliza-tion: highVulnerability: highBest protection against: pan-demics, nuclear war

Digital shelters

Something like secret location of uploads in global digital network, or secret recordings of human DNA and con-

nectome

They may help to sur-vive some form of Un-friendly AI, if it is not

omnipotent

Special anti-ex-tinction shelter in remote place

as suggested by Karim Jebari

Number of shelters: at least oneNumber of people: 100Independent survivability: 30+ yearsAbility to re-create civiliza-tion: highVulnerability: low to natural risks, medieum to human hostile actionBest protection against: pan-demic, nuclear warPrice: from 2 to 15 billions dol-larsPlace: secret fertile land (Alaski-an island?)Power: nuclear

In near space Remote space

Doomsday vaultfacilities which will help to rec-reate civilization by preserving important knowledge, instru-ments, seeds, resources, but

not people

Number of shelters: now oneNumber of people: thousands?Independent survivability: monthsAbility to re-create civilization: highVulnerability: highBest protection against: sto-chastic events, pandemics, nuclear war

Converting ALL existing

nuclear submarines in temporary asylums in short notice (~6 months)

Special refug-es built exactly to much known type and type

of a catastrophe after warning

“Preppers”People, who prepare to smaller

catastrophe and stock food

Number of people: 3 million people in USIndependent survivability: monthsAbility to re-create civilization: highVulnerability: highBest protection against: stochastic events, pandemics, nuclear war

Food storages, and chemically syn-thesised food, see work of Denken-berger

Phil Torres space bunkers

Basic independent space station

Number of people: 200 in eachIndependent survivability: dec-adesAbility to re-create civilization: highVulnerability: lowBest protection against: stochastic events, pandemics, nuclear war

Very large air blimps

Page 21: Nuclear submarines  as global risk  shelters

The Map of Shelters and Refuges from Global Risks (Plan B of X-risks Prevention)

On the ground

© Alexey Turchin, 2016, CC3.0

Distance from typical habitats

Underground On the sea Under the sea

Antarctic bases

Number of shelters: more than 10Number of people: hun-dredsIndependent survivabil-ity: 1-5 yearsAbility to re-create civi-lization: highVulnerability: mediumBest protection against: pandemics, nuclear winter, fallout

Uncontacted tribes

Number of shelters: around 10 Number of people: tho-sandsIndependent survivabil-ity: thousands yearsAbility to re-create civili-zation: mediumVulnerability: highBest protection against: some types of pandemics

Remote villages

Number of shelters: thou-sands or moreNumber of people: millionsIndependent survivabil-ity: almost indefiniteAbility to re-create civili-zation: highVulnerability: mediumBest protection against: pandemics

Random survivors

Number of shelters: de-pends of type of catastropheNumber of people: un-knownIndependent survivabil-ity: monthsAbility to re-create civili-zation: lowVulnerability: highBest protection against: stochastic events

Air planes

Tesla carswith biosafety

systemNumber of shelters: many thousandsNumber of people: thou-sandsIndependent survivabil-ity: daysAbility to re-create civili-zation: mediumVulnerability: highBest protection against: pandemicPrice: included

“Clever” houses with reinforcement

Number of shelters: mil-lions??Number of people: millionsIndependent survivabil-ity: monthsAbility to re-create civili-zation: highVulnerability: highBest protection against: pandemics, small impacts and nuclear warPrice: high

Mines, caves and subways

Number of shelters: thou-sandsNumber of people: millionsIndependent survivabil-ity: daysAbility to re-create civili-zation: highVulnerability: highBest protection against: explosions and acute fallout

Bomb sheltersand commercial shelters

Number of shelters: many thousandsNumber of people: millionsIndependent survivabil-ity: days, may be weeksAbility to re-create civili-zation: highVulnerability: mediumBest protection against: explosions and acute fallout

Cold war com-mand centers and underground citiesNumber of shelters: around 10Number of people: unknown, may-be hundredsIndependent survivability: yearsAbility to re-create civilization: highVulnerability: could be targeted in warBest protection against: explo-sions, fallout, pandemics

Very deep shelters

1 km deep with independent energy sources

Number of shelters: severalNumber of people: thousandsIndependent survivability: yearsAbility to re-create civilization: mediumVulnerability: low to natural risks, high to human hostile actionBest protection against: pan-demicPrice: very high, many billions dol-lars

Risks: it could be places which benefit from extinction event, start an attack or make secret danger-ous research

ShipsNumber of shelters: many thousandsNumber of people: millionsIndependent survivabil-ity: 1 year for some, may be moreAbility to re-create civili-zation: highVulnerability: mediumBest protection against: explosions, pandemics

IslandsNumber of shelters: thousandsNumber of people: mil-lionsIndependent survivabil-ity: indefiniteAbility to re-create civi-lization: highVulnerability: mediumBest protection against: pandemics

Sea steadingIndependent living communities

at sea

Number of shelters: severalNumber of people: thousandsIndependent survivability: yearsAbility to re-create civiliza-tion: mediumVulnerability: low to natural risks, high to human hostile ac-tionBest protection against: pan-demicPrice: very high, billions dollars

Nuclear submarines

Number of shelters: 10-100Number of people: thou-sandsIndependent survivabil-ity: around 1 yearAbility to re-create civili-zation: highVulnerability: mediumBest protection against: explosions and acute fallout

Specially rebuiltnuclear submarine

(“project Yellow submarine”)

Number of shelters: severalNumber of people: thousandsIndependent survivability: yearsAbility to re-create civilization: mediumVulnerability: low to natural risks, high to human hostile actionBest protection against: pandemicPrice: very high

Risks: could be targeted during nu-clear war

Could provide defence against gam-ma-ray burst with large surface radia-tion levels

Underwater town

seems not to have much value as it would be

vulnerable

International space station

Number of shelters: 1Number of people: 6Independent survivabil-ity: 3 monthes- 1 yearsAbility to re-create civili-zation: lowVulnerability: highBest protection against: short, but covering all earth surface catastrophe (air-borne pandemics)

Moon base

Number of shelters: oneNumber of people: dozensIndependent survivability: yearsAbility to re-create civilization: lowVulnerability: low to natural risks, high to human hostile actionBest protection against: pandemicPrice: dozens of billions dollars

Risks: could be converted into nu-clear military base by state actor, and used in nuclear war, or attacked

Mars base(Musk plan)

Number of shelters: oneNumber of people: thousand or even millionIndependent survivability: indefiniteAbility to re-create civilization: medium, de-pends of robotics and many unknownsVulnerability: low to natural risks, high to human hostile actionBest protection against: pandemics, impacts, earth-limited catastrophes, including collider acci-dents and grey gooPrice: trillions of dollars

Risks: could be targeted in space war or participate in it as actorRisks: transportation fleet could be used as kinetic weaponRisks: opportunity cost because of high price

Orion nuclear powered

generation ship

Number of shelters: oneNumber of people: thousand or even millionIndependent survivability: hundreds of yearsAbility to re-create civilization: medium, depends of many unknownVulnerability: low to natural risks, high to human hostile action, high probability of accidents and failure in-side the shipBest protection against: pandemics, impacts, earth-limited catastrophes, including collider accidents and grey gooPrice: trillions of dollars

Risks: could be targeted in space war or participate in it as actorRisks: the ship itself could explode, be used as a weapon or a source of weapons, as it has 100 000 nukes for propulsionRisks: opportunity cost because of high price

Time

Ref

uges

tha

t ar

e cu

rren

tly

in e

xist

ence

; Ty

pes

of r

isks

: nu

clea

r w

ar,

mul

ti-p

ande

mic

s, s

uper

volc

anic

exp

losi

onCou

ld b

e bu

ilt u

sing

exi

stin

g te

ch in

10-

30 y

ears

Hig

h te

ch s

helter

s ag

ains

t hi

-tec

h risk

s, w

hich

co

uld

be b

uilt a

fter

30-

100

year

s fr

om n

ow

Ship wrecks, rafts

Number of shelters: de-pends of a type of a catas-tropheNumber of people: un-known, maybe hundredsIndependent survivabil-ity: monthsAbility to re-create civili-zation: lowVulnerability: high to natu-ral causesBest protection against: pandemics

Remote moons in So-lar system, comets, asteroids, Oort cloud

Use of self-replicating ro-bots and manufacturing

nanotechnology for build-ing infrastructure, creation

of millions of habitats

Number of shelters: millionsNumber of people: millionsIndependent survivability: indefiniteAbility to re-create civilization: highVulnerability: low to natural risks, high to unfriendly AIBest protection against: pandemics, im-pacts, earth-limited catastrophes, includ-ing collider accidents and grey gooPrice: may be the small, just one first na-norobot

Risks of space war or space grey gooRisks of kinetic space weaponsRisks of extremely large artificial explo-sions inside gas planets or of the creation of very large nukesRisk of wrong command to the whole sys-tem

Distributed net of survivalists

Includes hoards with foodTrained people

Number of shelters: depends of type of catastropheNumber of people: thousands?Independent survivability: monthsAbility to re-create civilization: highVulnerability: highBest protection against: stochastic events, pandemics, nuclear war

High speed nano-starships, starting coloni-

sation waveNumber of shelters: millionsNumber of people: DNA sam-ples or uploadsIndependent survivability: highAbility to re-create civiliza-tion: highVulnerability: low to natural risks, medium to unfriendly AIBest protection against: al-most everything except false vacuum decay and strong UFAIPrice: may be the small, just one first nanorobot

Risks of space war or space grey gooRisks of laser weapons based in space which are able to target everything

Nanotech based homes

are able to with-stand any external influences as adap-tive shield

Nanotech based microscopic

shelters

Deep in Earth’s crust, which are running humans as uploads and are in-visible to any exter-nal hostile surveil-lance.

Immortal bodies

Upgraded human be-ings able to survive in space and any hostile environment

Isolated biospheres

Closed cycle projects

Number of shelters: severalNumber of people: thousands?Independent survivability: yearsAbility to re-create civiliza-tion: highVulnerability: highBest protection against: pan-demics, nuclear war

Digital shelters

Something like secret location of uploads in global digital network, or secret recordings of human DNA and con-

nectome

They may help to sur-vive some form of Un-friendly AI, if it is not

omnipotent

Special anti-ex-tinction shelter in remote place

as suggested by Karim Jebari

Number of shelters: at least oneNumber of people: 100Independent survivability: 30+ yearsAbility to re-create civiliza-tion: highVulnerability: low to natural risks, medieum to human hostile actionBest protection against: pan-demic, nuclear warPrice: from 2 to 15 billions dol-larsPlace: secret fertile land (Alaski-an island?)Power: nuclear

In near space Remote space

Doomsday vaultfacilities which will help to rec-reate civilization by preserving important knowledge, instru-ments, seeds, resources, but

not people

Number of shelters: now oneNumber of people: thousands?Independent survivability: monthsAbility to re-create civilization: highVulnerability: highBest protection against: sto-chastic events, pandemics, nuclear war

Converting ALL existing

nuclear submarines in temporary asylums in short notice (~6 months)

Special refug-es built exactly to much known type and type

of a catastrophe after warning

“Preppers”People, who prepare to smaller

catastrophe and stock food

Number of people: 3 million people in USIndependent survivability: monthsAbility to re-create civilization: highVulnerability: highBest protection against: stochastic events, pandemics, nuclear war

Food storages, and chemically syn-thesised food, see work of Denken-berger

Phil Torres space bunkers

Basic independent space station

Number of people: 200 in eachIndependent survivability: dec-adesAbility to re-create civilization: highVulnerability: lowBest protection against: stochastic events, pandemics, nuclear war

Very large air blimps