Quantum Computing, Network-enabled Telepathy & Singularity
Fortune Magazine's Peter Schwartz and Rita Koselka authored a fascinating article titled Quantum Leap that examines the implications of quantum computing, its affects on Moore's Law, how software engineers of the future will be limited not by processing power, but their own imagination and how "network-enabled telepathy" will impact the social dynamics of future generations.
Is it all merely science-fiction or a prelude to some shade of technological singularity?
Selected quote:
Traditional computing, with its ever more microscopic circuitry etched in silicon, can take us only so far: Moore's law, which dictates that the amount of computing power you can squeeze into the same space will double every 18 months, is set to run into a silicon wall by 2015. (The chief culprit is overheating, caused by electrical charges running through ever more tightly packed circuits.)
If we want to keep computer progress on track after that and be able to do all the amazing things in Sharon's life, we have to figure out how to manipulate the brain-bending rules of the quantum realm - an Alice in Wonderland world of subatomic particles that can be in two places at once.
Luckily some of the world's leading research agencies and technology companies are on the case. Single electrons have been made to adjust their spin. Subatomic circuitry is within our grasp. But because the breakthroughs are hidden in esoteric journals and described in language that can give even today's savviest computer users headaches, it is easy to miss the significance of what is going on.
Tangible evidence of the quantum revolution hit the market in July, when Freescale Semiconductor, a Motorola (Charts) spinoff, began commercial shipments of magnetic random-access memory (MRAM) chips. You'll probably notice MRAM first when you buy a digital camera that doesn't take any time to store a picture. Within a matter of years, your new laptop will switch on like a light.
MRAM gets its speed from something called the giant magnetoresistive effect, or GMR. Although it sounds like something out of an X-Men film, GMR has to do with the fact that if you place layers of ultrathin magnetic film on top of one another and alternate their polarity, you get resistance. That is, the electrons can be spun in one direction or the other. Electrons spin like a top or a billiard ball in some direction relative to a magnetic field. Flip the direction of the field, and the electron flips the direction of its spin. This very basic quantum effect can be used like a binary bit, its direction labeled "0" or "1" and employed to store digital information.
In conventional computing these zeroes and ones are created by switching an electric current on and off. Spins are less affected by the environment than electric charges and take longer to decay. Also, keeping an electric charge in position requires continuous power; when computers lose power, the charge goes away. With a magnetic device the memory stays put when the power shuts off.
As a bonus - and it's a fairly major bonus - if you take electricity out of the equation, you get rid of the overheating problem that is undercutting Moore's law.
