23 incredible new technologies you’ll see by 2021

The paralyzed will walk. But, perhaps not in the way that you’d imagine. Using a machine-brain interface, researchers are making it possible for otherwise paralyzed humans to control neuroprostheses–essentially mechanical limbs that respond to human thought–allowing them to walk and regain bodily control. The same systems are also being developed for the military, which one can only assume means this project won’t flounder due to a lack of funding.

A 1 Terabyte SD Memory Card probably seems like an impossibly unnecessary technological investment. Many computers still don’t come with that much memory, much less SD memory cards that fit in your digital camera. Yet thanks to Moore’s Law we can expect that the 1TB SD card will become commonplace in 2014, and increasingly necessary given the much larger swaths of data and information that we’re constantly exchanging every day (thanks to technologies like memristors and our increasing ever-connectedness). The only disruptive factor here could be the rise of cloud-computing, but as data and transfer speeds continue to rise, it’s inevitable that we’ll need a physical place to store our digital stuff.

The first around-the-world flight by a solar-powered plane will be accomplished by now, bringing truly clean energy to air transportation for the first time. Consumer models are still far down the road, but you don’t need to let your imagination wander too far to figure out that this is definitely a game-changer. Consider this: it took humans quite a few milennia to figure out how to fly; and only a fraction of that time to do it with solar power.

The world’s first zero-carbon, sustainable city in the form of Masdar City will be initially completed just outside of Abu Dhabi. The city will derive power solely from solar and other renewable resources, offer homes to more than 50,000 people.

Personal 3D Printing is currently reserved for those with extremely large bank accounts or equally large understandings about 3D printing; but by 2015, printing in three dimensions (essentially personal manufacturing) will become a common practice in the household and in schools. Current affordable solutions include do-it-yourself kits like Makerbot, but in four years it should look more like a compact version of the uPrint. Eventually, this technology could lead to technologies such as nanofabricators and matter replicators–but not for at least a few decades.

Light Peak technology, a method of super-high-data-transfer, will enable more than 100 Gigabytes per second–and eventually whole terabytes per second–within everyday consumer electronics. This enables the copying of entire hard drives in a matter of seconds, although by this time the standard hard drive is probably well over 2TB.

Insect-sized robot spies aren’t far off from becoming a reality, with the military currently hard at work to bring Mission Impossible-sized tech to the espionage playground. Secret weapon: immune to bug spray.

Nuclear Fusion: Energy from a fusion reactor has always seemed just out of reach. It’s essentially the process of producing infinite energy from a tiny amount of resources, but it requires a machine that can contain a reaction that occurs at over 125,000,000 degrees. However, right now in southern France, the fusion reactor of the future is being built to power up by 2019, with estimates of full-scale fusion power available by 2030.

Crash-proof cars have been promised by Volvo, to be made possible by using radar, sonar, and driver alert systems. Considering automobile crashes kill over 30,000 people in the U.S. per year, this is definitely a welcome technology.