The quantum computing race is on 

Although scientists don’t completely understand the underlying science of quantum mechanics, a global geopolitical, military and commercial race is on for the development of affordable and reliable quantum computers and associated software. How long it will take and how much it will cost is far from clear.  

Over the next few years, the world will learn whether practical (not experimental) quantum computing is another “technology that is always 5 years away” or a revolution in high-end computing.