Korea, home of super-fast internet access, could be heading for another speed boost. The Korea Institute of Science and Technology claims to have developed an optical fibre made of plastic able to increase internet speed by a factor of 25. The new-style data cable can transmit at up to 2.5 gigabits per second. This compares to a maximum throughput of 100 megabits of data per second for copper cables. Although not as fast as glass optical cables, the new plastic technology is infinitely more versatile and far less prone to damage. it’s also relatively cheap to produce.