TechnologyDoubts cast over D-Wave's claim of quantum computer supremacy D-Wave's claim that its quantum computers can solve problems that would take hundreds of years on classical machines have been undermined by two separate research groups showing that even an ordinary laptop can perform similar calculations News
SpaceWhen did time begin? Hint: It wasn’t at the big bang You may think that time started 13.8 billion years ago at the birth of the universe, but physicists with alternative definitions of time have other ideas Features