Wi-Fi is the standard for fast wireless data transmission at the moment. In the future, it’s likely that we will all be using something faster---Li-Fi, 71 means “light fidelity.” It is a new type of wireless technology that uses visible light to transmit data. 72 to the public in 2011, Li-Fi is much faster than Wi-Fi. Data is transmitted at one gigabyte per second. 100 times faster than the average Wi-Fi speeds that we achieve today. 73 Wi-Fi’s radio waves, light cannot pass through walls. This means the data being transmitted can’t be accessed by other people. However, this is 74 as a restriction by some people, as Li-Fi always requires visible light to work. For now, Li-Fi is more likely to be used in areas that require more security, such as aircraft or hospitals. Most experts agree it will 75 many years before the technology is widely used in society.

Video games provide a fun escape from reality for most teenagers, but they’re considered violent, and a waste of time by parents. The struggle between parent and child has raged on for years. Besides being a unique source of amusement, however, can video games actually make you smarter?