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Getty Images Copyright: Getty Images Mitt Romney said the New York prosecutor was "setting a dangerous precedent for criminalising political opponents" Image caption: Mitt Romney said the New York prosecutor was "setting a dangerous precedent for criminalising political opponents" It's not known whether the former president is being directly investigated, but some of his closest allies definitely are.

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A grand jury was dissolved earlier this year after filing a final report, which remains sealed. Georgia: Prosecutors spent eight months looking into alleged attempts to overturn Trump's narrow loss in Georgia in 2020. Their investigation has already led to hundreds of people who stormed the Capitol being charged.

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This is an active criminal investigation and could result in charges being filed.Ĭapitol riot: The department is also running a separate criminal probe into the 6 January riot and broader efforts to overturn the 2020 election result. There are several other active investigations - here are the most high-profile:Ĭlassified documents: The Department of Justice is looking into the removal of government documents from the White House, which were then taken to Trump's Florida estate after he left office. This article was originally published under the headline: "No, IBM didn’t just 'reverse time' with a quantum computer." While this is accurate, the headline was modified to reflect the fact that though the researchers in question used publicly-available IBM quantum computing facilities, they are not affiliated with the company.The New York investigation into a payment made to buy the silence of ex-porn star Stormy Daniels before the 2016 election is far from Donald Trump's only legal headache. Time, whether any of us likes it or not, marches on.

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It’s tough enough to explain the paradoxes that actually exist in quantum mechanics without sensationalist embellishment. They do damage to science as a whole by convincing the public that science is so bewildering it’s beyond their comprehension. Wild headlines don’t just give quantum computing a bad name. They certainly didn’t violate the laws of thermodynamics or the laws of physics.” He added: “This is the type of hype that is going to give quantum computing a bad name.” One, who did not wish to be named, said: “I don’t know how useful this is … it doesn’t mean that these guys made a time machine. Other quantum computing experts we spoke to agreed. From a quick look at the paper, I confess that I didn’t understand how this becomes more profound if the simulation is being done on IBM’s quantum computer.” But it’s a lot less interesting than a time machine.Īs Scott Aaronson, director of the Quantum Information Center at the University of Texas at Austin, says, “If you’re simulating a time-reversible process on your computer, then you can ‘reverse the direction of time’ by simply reversing the direction of your simulation. The authors of the paper, from the Moscow Institute of Physics and Technology, Argonne National Laboratory in Illinois, and ETH Zurich, say their technique might be useful for testing quantum programs. A lens can be used to focus light-“reversing” the dispersal of light that had gone out of focus. It might let you see things-like steam flowing back into a tea kettle or Humpty Dumpty spontaneously assembling from a jumble of broken pieces-that appear to “reverse the arrow of time.” The paper in question describes a quantum-computing version of such a video running in reverse.Ī closer analogy is a lens, like what one would find in a telescope, a microscope, or eyeglasses. If you’ve never seen it before, it’s kind of neat. That “reverses the flow of time,” in a way. So if they didn’t invent time travel, what did these scientists actually do?












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