Menu
Blog scientist
Oceans on brink of mass extinction: study
Brain exercises delay mental decline
Meaning of life changes across cosmos
Ancient Nubians drank antibiotic beer
First mission to touch the Sun
There's gold in them thar bacteria!
Low vitamin D linked to schizophrenia
Weight loss may be toxic: study
Pilbara find points to earliest life
Researchers uncover dance moves to impress
Visual trickery key to luring lover
Scientists find short-sightedness gene
Artificial 'skin' can sense pressure
Study confirms antibiotics mess with gut
Phone chatter could power mobiles
Stowaways found hitching ride on seaweed
Fishing could feed millions more: report
Amateurs make an astronomical impact
Study reveals new piece in autism puzzle
Genome map may help devil fight cancer
Report says ozone layer depletion stopped
Moon's surface at saturation point
Gene sweeps nets female cancer clues
Australia birthplace of astronomy: study
Study predicts end of world as we know it
A new study suggests the universe and everything in it could end within the Earth's lifespan - less than 3.7 billion years from now - and we won't know it when it happens.

But one expert says the result isn't valid because the researchers chose an arbitrary end point.

The universe began in a Big Bang about 13.7 billion years ago and has been expanding at an ever accelerating rate ever since.

According to standard cosmology models the most likely outcome for the universe is that it will expand forever.

But a team of physicists led by Raphael Bousso from the University of California, Berkeley, claim their calculations show the universe will end.

Writing in the prepublication blog arXiv.org Bousso and colleagues say there's a "measure problem" in the cosmological theory of eternal inflation.
Multiverse bubbles

Eternal inflation is a quantum cosmological model where inflationary bubbles can appear out of nothing. Some expand and go on forever, others collapse and disappear again.

These bubbles, each being a universe, pop in and out of existence like bubbles in boiling water.

They argue, in an eternally inflating universe every event that is possible will eventually occur - not just once, but an infinite number of times. This makes predicting when each event will occur impossible, such as the probability that a universe like ours exists.

"If infinitely many observers throughout the universe win the lottery, on what grounds can one still claim that winning the lottery is unlikely?" they write.

Bousso's team have being trying to determine the number of bubbles that exist at any given time and the number of 'observers' in each bubble to come up with the relative frequency of observers that can live in one universe compared to the relative frequency of observers who can live in another universe.

But the "measure problem" makes calculating this value impossible.

According to Bousso and colleagues, the only way to avoid this conundrum is to introduce a cut-off point, which then helps make sense again.

By introducing this cut-off, they say there is "a 50-50 chance of the universe ending in the next 3.7 billion years."
False conclusion

Dr Charles Lineweaver from the Australian National University's Mount Stromlo Observatory says Bousso's team are simply imposing a catastrophe for statistical reasons.

He says the need for a better statistical solution has led the researchers to a false conclusion about the end of the universe.

"Because the problem won't go away in their calculations, they conclude the universe must really end," says Lineweaver.

"Bousso's average life of a universe is a set time, only because that's what happens when you introduce a cut off point to get a reasonable probability."

"It's a statistical technique being taken probably too seriously."

Print
Census charts world beneath the seas
Wonder carbon nets pair Nobel Physics Prize
Focus on chest for CPR: study
Bull ants have right eye for the job
Carbon chemistry pioneers share prize
Ancient galaxies found in modern universe
Solar surprise for climate models
Study predicts end of world as we know it
Rare plant has biggest genome yet found
Astronomers find long-lost lunar rover
Flight paths may be bad for the heart
Complex Haitian quake triggered tsunamis
US doctors usher in 'dawn of stem cell age'
Changing demographics impact CO2 levels
Sleeping in lit room leads to weight gain
Harsh conditions create sterile workers
Study finds pigeons love a flutter
Humpback whale beats long-distance record
Survey to dive deep into Australian waters
Bad jobs affect mental health
Hubble captures suspected asteroid crash
Mysterious pulsar has astronomers in a spin
Native rice may hold key to food future
Future LEDs may be what the doctor orders
Bilingualism good for the brain
Organ consent needs thought transplant
Cavemen ground flour, prepped veggies
Fossilised iceblocks shed light on early life
Menu
Water on Moon bad news for astronomy
Human eye evolved to see dark world
Wind could have parted sea for Moses
CERN scientists spot potential discovery
Malaria crossed to humans from gorillas
Horny find uncovers Triceratops' predecessor
Time passes quicker for high flyers
Da Vinci's ornithopter takes flight
Software smart bomb aimed at Iran: experts
High oestrogen levels may impact brain
Quantum leap towards computer of the future
Study finds predictive power of search
Cardio routine can nurture sweet dreams
Restored Apollo 11 footage to be screened
'Extinct' animals back from the dead
Astronomers find home away from home
Study locates our sense of direction
Records reveal First Fleet's wet welcome
Dinosaurs taller thanks to thick cartilage
Free mammograms 'should start at 40'
Grunting slows opponent's reaction time
Colour preferences shaped by experience
Father of IVF wins Nobel prize
Happiness more than gene deep
Visit Statistics
http://google.com/

http://bing.com/

https://gepatit-info.top/

https://serdechnic.com/

https://buy-meds24.com/

https://dverirespekt.ru/

https://www.sribno.net/

https://undergroundcityphoto.com/

https://detskiezabolevaniya.com/

http://grafaman.ru/

http://innoslicon.com/html/product/index.htm

https://yginekologa.com/

https://yes-com.com/

https://www.baikaleminer.com/

https://bitmaein.com/shop

https://www.artdeko.info/

https://aerodizain.com/

http://xn--d1abj0abs9d.in.ua/

http://lider82.ru/

http://sta-grand.ru/

http://snabs.kz/

https://sky-mine.ru/

https://rybalka-opt.ru/

http://snegozaderzhatel.ru/

https://xn--e1aaajzchnkg.ru.com/

http://hit-kino.ru/

http://www.regionshop.biz/

https://xn--80aaafbn2bc2ahdfrfkln6l.xn--p1ai/

https://pp-budpostach.com.ua/

https://vykup-avto-krasnodar.ru/

https://gcup.ru/

https://mega-polis.biz.ua/

http://vanrise.com.ua/

http://infra-e.ru/

https://veterinariya.com/

https://ponosanet.com/

https://cariestop.com/

https://proartrit.com/

https://elonm.ru/

https://nakozhe.com/

https://spinanebolit.com/

http://zameskino.ru/

http://kinoprinc.ru/

http://pospektr.ru/

http://buypillsonline24h.com/

http://komputers-best.ru/

https://komp-pomosch.ru/