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.

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