|Quantum computers may be more of an imminent threat than AI|
Elon Musk, Stephen Hawking and others have been warning about runway artificial intelligence, but there may be a more imminent threat: quantum computing. It could pose a greater burden on businesses than the Y2K computer bug did toward the end of the ’90s.
Quantum computers are straight out of science fiction. Take the “traveling salesman problem,” where a salesperson has to visit a specific set of cities, each only once, and return to the first city by the most efficient route possible. As the number of cities increases, the problem becomes exponentially complex. It would take a laptop computer 1,000 years to compute the most efficient route between 22 cities, for example. A quantum computer could do this within minutes, possibly seconds.
Unlike classic computers, in which information is represented in 0’s and 1’s, quantum computers rely on particles called quantum bits, or qubits. These can hold a value of 0 or 1 or both values at the same time — a superposition denoted as “0+1.” They solve problems by laying out all of the possibilities simultaneously and measuring the results. It’s equivalent to opening a combination lock by trying every possible number and sequence simultaneously.
Albert Einstein was so skeptical about entanglement, one of the other principles of quantum mechanics, that he called it “spooky action at a distance” and said it was not possible. “God does not play dice with the universe,” he argued. But, as Hawkings later wrote, God may have “a few tricks up his sleeve.”
Crazy as it may seem, IBM, Google, Microsoft and Intel say that they are getting close to making quantum computers work. IBM is already offering early versions of quantum computing as a cloud service to select clients. There is a global race between technology companies, defense contractors, universities and governments to build advanced versions that hold the promise of solving some of the greatest mysteries of the universe — and enable the cracking open of practically every secured database in the world.
Read More – The Washington Post