Operators like BlockFi and Nexo offer rates that are north of 9%.
Children in a classroom in Gondar in the Amhara Region. Ethiopia has signed a deal to register 5 million school children using blockchain.
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The digital yuan could make transactions faster, cheaper and more transparent, but there are dangers for the global economy.
NFTs can be used to prove who created and who owns digital items like these images by the artist Beeple shown at an exhibition in Beijing.
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NFTs are made the same way as crypto coins, but where every crypto coin is like every other, each NFT is a unique digital item – from images to sound files to text.
Countries in Africa have some of the highest rates of entrepreneurship in the world, yet their contribution to the economy is limited. Technology such as the blockchain, drones and AI could provide a way forward.
Most medical historians agree that one of the most important advances in medicine was the use of ether to numb pain during surgery. Just who deserves credit for this has been another story.