Teorin bakom alla kryptokurvor

inklusive bitcoin, är att de dokument som produceras av ett distribuerat datanätverk kan göras manipulationssäkra, vilket därmed teoretiskt garanterar att en valuta är bättre än regeringarna kan. Och hittills har blockchainsystemet där bitcoin byggs trots vissa väsentliga stötar på vägen visat sig åtminstone delvis denna teori. En miljon eller flera bitcoins har stulits sedan 2009, men det underliggande systemets distribuerade huvudbok, det redovisningssystem som bitcoin bygger på, har hittills varit stabilt och oförstörbart.

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Alla de gemensamma argumenten mot kryptokurver som bitcoin

och blockchain-tekniken som undergarder dem, tar alltid hänsyn till detta faktum - de preliminära och ömtåliga egenskaperna hos vanliga pengar. Cryptocurrency kan inte förstås även en liten bit av den som tror att pengar är verkligt, solidt eller "bakom" något annat än mänskligt förtroende för institutioner vars stabilitet alltid är osäker. En amerikanska dollar är "backad by" "USA: s fulla tro och kredit." Men vad betyder det här egentligen? Det betyder att om du tar en dollar till amerikanska statskassan och ber dem att lösa in den, kommer de att: De ska ge dig en dollar. Eller fyra fjärdedelar, om du vill, förmodligen.

USS Lexington discovered by billionaire Paul Allen's crew 76 years after WWII sinking

Billionaire Paul Allen, the Microsoft co-founder and Seattle Seahawks owner, has made another huge nautical find: the USS Lexington, which was lost at the Battle of Coral Sea 76 years ago. The fleet aircraft carrier, the first to be sunk by opposing carrier aircraft in World War II, was found near Australia below Coral Sea in a remarkably well-preserved condition, news cast reported. The expedition crew of Allen’s personal research ship R/V Petrel found the missing Lexington two miles below and about 500 miles off the eastern coast of Australia, according to USNI News. “To pay tribute to the USS Lexington and the brave men that served on her is an honor,” Paul Allen said on his book. “As Americans, all of us owe a debt of gratitude to everyone who served and who continue to serve our country for their courage, persistence and sacrifice.” As the Lexington was struck by multiple Japanese torpedo...

Scientist '99 percent' sure bones found belong to aviator

A scientific study claims to shed new light on the decades-long mystery of what happened to Amelia Earhart. Richard Jantz, an emeritus anthropology professor at the University of Tennessee, argues that bones discovered on the Pacific Island of Nikumaroro in 1940 were likely Earhart’s remains. The research contradicts a forensic analysis of the remains in 1941 that described the bones as belonging to a male. The bones, which were subsequently lost, continue to be a source of debate. Earhart, who was attempting to fly around the world, disappeared with navigator Fred Noonan on July 2, 1937, during a flight from Papua New Guinea to Howland Island in the Pacific. One well-publicized theory is that Earhart died a castaway after landing her plane on the remote island of Nikumaroro, a coral atoll 1,200 miles from the Marshall Islands. Some 13 human bones were found on Nikumaroro, also known as Gardner Island, three years after Earhart’s disappearance. In 1941...

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