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Comment Cost of Net-Zero vs Cost of fossils and disasters (Score 1) 22

Often these types of analysis focus on only the costs of investing in renewables and ignore the financial benefits of the investment.
There are solid benefits to eliminating fossil fuels (cost of the fuel, climate disasters, pollution damaging health, etc.).
In addition, providing access to lowest cost renewable non-polluting energy has benefits to everyone by improving the quality of life.
Their plan also includes unproven high cost nuclear which should be a non-starter.
They should instead rely on proven low cost solar PV, wind and battery storage.

Comment Been using Linux for years (Score 1) 101

I started using various distros of Linux about 25 years ago and have experienced first hand their improvement from basically functional to extremely capable.
My latest "new" computer is a used ThinkPad to replace an aging MacBook Pro (don't ask how old). The MacBook Pro ran Linux but was so old and slow that it was frustrating to use.
I installed Ubuntu on it and it has been working flawlessly and runs everything I need with agility.

Comment An amazing accomplishment (Score 4, Interesting) 26

I read this several times and don't pretend that I understand all of it but smart people who do understand the complexity of the problem and Signal's solution seem impressed.
This achievement puts Signal far ahead of any other encryption. They seem to have an encryption solution that is "quantum proof" as well as being capable of implementation in the real world.
Congratulations to them.

Submission + - Why Signal's post-quantum makeover is an amazing engineering achievement (arstechnica.com)

mspohr writes: One exception to the industry-wide lethargy is the engineering team that designs the Signal Protocol, the open source engine that powers the world’s most robust and resilient form of end-to-end encryption for multiple private chat apps, most notably the Signal Messenger. Eleven days ago, the nonprofit entity that develops the protocol, Signal Messenger LLC, published a 5,900-word write-up describing its latest updates that bring Signal a significant step toward being fully quantum-resistant.

The complexity and problem-solving required for making the Signal Protocol quantum safe are as daunting as just about any in modern-day engineering. The original Signal Protocol already resembled the inside of a fine Swiss timepiece, with countless gears, wheels, springs, hands, and other parts all interoperating in an intricate way. In less adept hands, mucking about with an instrument as complex as the Signal protocol could have led to shortcuts or unintended consequences that hurt performance, undoing what would otherwise be a perfectly running watch. Yet this latest post-quantum upgrade (the first one came in 2023) is nothing short of a triumph
Outside researchers are applauding the work.

“If the normal encrypted messages we use are cats, then post-quantum ciphertexts are elephants,” Matt Green, a cryptography expert at Johns Hopkins University, wrote in an interview. “So the problem here is to sneak an elephant through a tunnel designed for cats. And that’s an amazing engineering achievement. But it also makes me wish we didn’t have to deal with elephants.”

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