TED: Forget Wi-Fi. Meet the new Li-Fi Internet | Harald Haas

The video discusses the potential of Li-Fi technology, which uses LED lights to transmit data to solar cells, acting as receivers. This method is energy-efficient and can help bridge the digital divide by connecting billions of devices to the Internet. The presenter demonstrates how a solar cell can receive high-speed data from an LED lamp, even in challenging conditions like fog. The technology promises to integrate with existing infrastructure, offering a sustainable solution for expanding Internet connectivity without increasing energy consumption.

How does the fluctuation of light intensity affect the energy harvested by a solar cell?

What challenges might arise when using Li-Fi technology in real-world applications?

In what ways could Li-Fi contribute to closing the digital divide?