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This update is an adaptation of my recent answer to a Quora reader who was in a panic. She asked:

What can I do after a hard drive crash?
How can I recover my cryptocurrency?

In the past, I would address the immediate problem of course. (My answer is below). But to prepare for the next unfortunate event, I recommended a wallet type based on a user’s unique experience, expertise and comfort zone. I guided the reader to weigh trade-offs of important criteria: Security, portability, convenience, and quick access to assets).

I had believed that some types of wallets were better for some individuals, but that they required a background in cryptography—or at least a discipline for meticulous practices. As CEO of the Cryptocurrency Standards Association, I had also believed that simple, unified, and popular standards would emerge very soon. I figured that this would enable users to practice safe-wallet maintenance in their own homes.

I was wrong. Most crypto wallets have not sufficiently evolved to counter the risks and complexities of everyday scenarios —not even for expert users. The problem isn’t the fault of any one vendor or hosted online service. It is that all of these gadgets, apps and services have not gotten together behind a single set of risk standards to a point where they become simple, standardized and compliant-friendly in the real world.

The lack of comprehensive standards and best practices dealing with total loss of access can bite anyone in the tush. Expertise and experience be d*mned. Today, I recommend only two types of wallets. All others are simply too risky to play a role in any financial portfolio. They set the stage for losing your wealth and health in so many plausible scenarios:

  • If your electronic device is lost, hacked, stolen or run over by a truck
  • If you become incapacitated or die
  • If you forget a secret, or where you stored it
  • If you have no idea what is “multisig” and don’t care to learn strange new practices
  • If an online cloud service or exchange goes dark or mysteriously disappears

Here is my answer to the reader who urgently needs to recover from a disk drive crash. After dealing with that crisis (it’s not at all pretty), I explain what do do in the future…


Question:How can I recover my cryptocurrency after a hard drive crash?

Move aside, electrons; it’s time to make way for the trion.

A research team led by physicists at the University of California, Riverside, has observed, characterized, and controlled dark trions in a semiconductor—ultraclean single-layer tungsten diselenide (WSe2)—a feat that could increase the capacity and alter the form of transmission.

In a semiconductor, such as WSe2, a trion is a quantum bound state of three charged particles. A negative trion contains two electrons and one hole; a positive trion contains two holes and one electron. A hole is the vacancy of an electron in a semiconductor, which behaves like a positively charged particle. Because a trion contains three interacting particles, it can carry much more information than a .

Physicists at the University of Innsbruck are proposing a new model that could demonstrate the supremacy of quantum computers over classical supercomputers in solving optimization problems. In a recent paper, they demonstrate that just a few quantum particles would be sufficient to solve the mathematically difficult N-queens problem in chess even for large chess boards.

A process called nucleation plays a critical role in many physical and biological phenomena that range from crystallization, melting and evaporation to the formation of clouds and the initiation of neurodegenerative diseases. However, nucleation is a challenging process to study experimentally, especially in its early stages, when several atoms or molecules start to form a new phase from a parent phase. Now, a team of physicists led by the University of California, Los Angeles has used a method called atomic electron tomography to study early-stage nucleation in four dimensions (that is, in three dimensions of space and across time) at atomic resolution.

Malware researchers discovered a new malicious campaign for Android devices that replaces legitimate apps with tainted copies built to push advertisements or hijack valid ad events.

Around 25 million devices have already been infected with what researchers have dubbed “Agent Smith,” after users installed an app from an unofficial Android store.

https://paper.li/e-1437691924#/


Forms of Transhumanism

Transhumanism takes a variety of overlapping forms united around a common commitment to use science and technology to improve human intellect and/or physiology. Many, though not all, are committed to Posthumanism; others focus on artificial intelligence and its implications for human life. All of them raise important worldview questions, though not always the same ones.

One early form of Transhumanism was Extropianism. The name comes from the neologism extropy, a word intended to convey the reversal of entropy. Its focus is on using science, technology, and reason to take control of human evolution through life extension technologies, uploading our minds into computers, etc. An optimistic philosophy, Extropianism expected to extend human lifespans indefinitely and to recover and heal people frozen cryogenically.

Carbon dioxide is kind of painted as the villain of the 21st century, and it’s not enough to just reduce our emissions now – we need to remove some of what’s already in the atmosphere. Now, researchers at Karlsruhe Institute of Technology (KIT) have developed a simple way to turn the troublesome gas into a useful resource by converting it into the “wonder” material graphene.

Virgin Galactic is preparing to become the first publicly traded spaceflight company, and the venture is setting a course to be profitable by August 2021, which would put it lightyears ahead of the profitability projections of another transportation-based company that simply moves people around on Earth: Uber.

The Wall Street Journal reports that Virgin Galactic is merging with Social Capital Hedosophia Holdings (SCH), which will take a 49 percent stake and invest about $800 million into the space tourism endeavor.