There are many things people take for granted in life: clean water, food, public transportation, sunlight, free Wi-Fi.
OK, scratch the last one. However, the possibility of internet access for everyone could become reality. That light bulb over your head (literally) can transmit signals -much in the same way Wi-Fi does- that hook your computer up to the internet. Already some grocery stores in France are using Li-Fi to track consumer’s shopping habits. While the light fidelity technology is still in its early phases, it’s shown tremendous potential. The global market is projected to expand to $115 billion by 2022 and could conceivably replace Wi-Fi.
Here’s what you need to know about the nascent, but promising technology