CNN: How millions of jobless Americans can afford to ditch work

 CNN: How millions of jobless Americans can afford to ditch work 

https://www.cnn.com/2021/12/15/economy/labor-force-retirement-great-resignation/index.html

FUTURISM: The Future of Bitcoin is Threatened by Quantum Computers Can Bitcoin keep up with quantum computing?

 The Future of Bitcoin is Threatened by Quantum Computers Can Bitcoin keep up with quantum computing?

https://futurism.com/bitcoins-security-quantum-computers

ossible, but the system does have weak points quantum computers could exploit.

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CRYPTOGRAPHY GETS BUSTED

For their paper, Aggarwal and his colleagues examined how quantum computers could break through Bitcoin’s security in two ways: by mining more than classical computers can and by cracking Bitcoin’s cryptographic keys.

If a miner controls more than 50 percent of the computational power on a blockchain network, they can use that majority control for malicious activity. The researchers found that the application-specific integrated circuits (ASICs) currently used by most cryptocurrency miners should be able to maintain a speed advantage over quantum computers for the next 10 years, so miners likely won’t be able to use quantum systems for nefarious purposes in this manner for at least a decade.

As for cracking today’s cryptographic keys, part of Bitcoin’s security protocol involves every bitcoin owner possessing two encryption keys: a private one and a public one. The latter can be easily generated using the former, but the reverse is far more difficult. An owner’s signature is verified without revealing the private key using a technique called elliptic curve signature scheme.

While conventional computers don’t possess the necessary computational power to derive a private key from a public key, quantum computers could do it rather easily. “The elliptic curve signature scheme used by Bitcoin…could be completely broken by a quantum computer as early as 2027,” Aggarwal and his colleagues wrote.

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CRYPTOGRAPHY GETS BOOSTED

This security threat isn’t unique to Bitcoin. Just about everything on the internet and every computer system with a modicum of security uses the same cryptographic principles. To that end, quantum computers put anything using today’s encryption methods at risk.

“[T]here is little doubt that the power of quantum computing could be used to ‘crack’ current encryption methods,” William Hurley, the chair of the Quantum Computing Standards Workgroup of the Institute of Electrical and Electronics Engineers (IEEE), told Futurism.

“Encryption methods like RSA are based on the simple premise that factoring large numbers is computationally unattractive,” said Hurley, who has previously written about the threat quantum computers pose to today’s encryption methods. “RSA and other encryption methods essentially make it so time and resource intensive that it becomes undesirable to invest in breaking the encryption. With the advent of quantum computers, the factoring of these two large numbers now becomes more of a reality.”

Quantum computers could potentially become so powerful they require their own kind of cryptography, but that doesn’t mean Bitcoin and today’s encryption methods must be scrapped entirely. With some reworking, they could be made more secure.

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For starters, Hurley suggests doubling or tripling the length of cryptographic keys. “Doubling the length of the encryption key is even more effective in a symmetric encryption scheme,” he said. “Quantum computers could use Grover’s Algorithm to break symmetric keys in quadratic time, but that’s not nearly fast enough to overcome a longer key.”

According to MIT Technology Review, Bitcoin doesn’t have any plans to revise its current security protocols just yet, but with usable quantum computers still a decade or two away, cryptocurrency platforms have time to reconsider their encryption methods.

“It’s easy to romanticize quantum computing. And while the technology is closer than you think, it’s not magic,” said Hurley. “It will not be the end of encryption, as many propose.”

Disclosure: Several members of the Futurism team, including the editors of this piece, are personal investors in a number of cryptocurrency markets. Their personal investment perspectives have no impact on editorial content.

CNBC: Leading airlines in the U.S. by domestic market share 2020 Published by Erick Burgueño Salas , Jul 21, 2021 The statistic represents the U.S. domestic market share of leading airlines from January to December 2020. During this time period, American Airlines was the leading airline in the U.S., with a domestic market share of 19.3 percent, closely followed by Southwest Airlines, which had a 17.4 percent market share. U.S. airlines' domestic market share The passenger air transportation market is a thriving industry, taking individuals to locations around the globe. American Airlines was the second largest airline in the world based on sales, reaching 44.9 billion U.S. dollars in sales revenue in 2019. Passenger airlines can face much scrutiny for their passenger satisfaction and comfort. A 2019 North American Airline Satisfaction Study by J.D. Power & Associates listed low-cost airlines and JetBlue Airways as the best long-haul and short-haul carriers. United Airlines, Delta Air Lines, American Airlines and Southwest Airlines are the top ranked airlines based on 2020 domestic market share. Delta operates out of Atlanta, and Hartsfield-Jackson Atlanta International Airport, Delta’s hub, sees the most passenger traffic in the United States. At 330.58 billion, American Airlines boasted the most passenger kilometers flown in 2018. Chicago-headquartered United Airlines is a subsidiary of United Continental Holdings. United has flights to 238 domestic destinations and 60 different countries, the George Bush Intercontinental Airport in Houston being its largest passenger hub with over 40 million passengers every year. Read more Domestic market share of leading U.S. airlines from January to December 2020*

 https://www.statista.com/statistics/250577/domestic-market-share-of-leading-us-airlines/

American, JetBlue seek dismissal of antitrust lawsuit tied to partnership https://www.cnbc.com/2021/11/22/american-jetblue-seek-dismissal-of-antitrust-lawsuit-tied-to-partnership.html