schwit1 PR Newswire: Concerns about Hillary Clinton's health are "serious -- could be disqualifying for the position of President of the U.S.," say nearly 71% of 250 physicians responding to an informal internet survey by the Association of American Physicians and Surgeons (AAPS). About 20% said concerns were "likely overblown, but should be addressed as by full release of medical records." Only 2.7% responded that they were "just a political attack; I have confidence in the letter from her physician and see no cause for concern." While more than 81% were aware of her history of a concussion, only 59% were aware of the cerebral sinus thrombosis, and 52% of the history of deep venous thrombosis. More than 78% said the health concerns had received "not enough emphasis" in the media, and only 2.7% that there had been "too much emphasis." Nearly two-thirds said that a physician who had a concern about a candidate's fitness to serve for health reasons should "make the concerns known to the public." Only 11% said a physician should "keep silent unless he had personally examined the patient," and 10% that the candidate's health was "off limits for public discussion." A poll of 833 randomly selected registered voters by Gravis Marketing showed that nearly half (49%) were not aware of the "well documented major health issues that Hillary Clinton has." Nearly three-fourths (74%) were unaware of Bill Clinton's statement that Hillary suffered a "terrible" concussion requiring "six months of very serious work to get over." The majority (57%) thought that candidates should release their medical records.

Australian entrepreneur Craig Wright has put an end to the years-long speculation about the creator of Bitcoin. In an interview with the BBC, The Economist (may have a paywall), and GQ, Wright claimed that he is indeed the person who developed the concepts on which Bitcoin cryptocurrency is built. According to the BBC, Mr. Wright provided "technical proof to back up his claim using coins known to be owned by Bitcoin's creator." Wright writes in a blog post: [A]fter many years, and having experienced the ebb and flow of life those years have brought, I think I am finally at peace with what he meant. If I sign Craig Wright, it is not the same as if I sign Craig Wright, Satoshi[...] Since those early days, after distancing myself from the public persona that was Satoshi, I have poured every measure of myself into research. I have been silent, but I have not been absent. I have been engaged with an exceptional group and look forward to sharing our remarkable work when they are ready. Satoshi is dead. But this is only the beginning. According to Wright's website, he is a "computer scientist, businessman and inventor" born in Brisbane, Australia, in October 1970. Some have questioned the authenticity and relevance of the "technical proof" Wright has provided. Nik Cubrilovic, an Australian former hacker and leading internet security blogger, wrote, "I don't believe for a second Wright is Satoshi. I know two people who worked with Wright, characterized him as crazy and schemer/charlatan." Michele Spagnuolo, Information Security Engineer at Google added, "He's not Satoshi. He just reused a signed message (of a Sartre text) by Satoshi with block 9 key as 'proof.'"

An anonymous reader writes: The advent of MOOCs, Khan Academy, and the hundreds of other learning sites that have popped up caused many people to predict the decline of expensive, four-year universities. But Donald Heller writes in the Chronicle of Higher Education that most of the people making these claims don't have a good understanding of how actual students are interacting with online classes. He points out that it's a lot easier for a 40-year-old who's in a stable life position, and who has already experienced college-level education to work through an MOOC with ease. But things change when you're asking 18- to 20-year-olds to give up the structure and built-in motivation of a physical university to instead sit at their computer for hours at a time. (The extremely low pass rate for free online courses provides some evidence for this.) Heller also warns that prematurely hailing MOOCs as a replacement for colleges will only encourage governments and organizations to stop investing in institutions of higher learning, which could have dire consequences for education worldwide.