Some digital collectibles, especially those on blockchains like Ethereum, require a small amount of cryptocurrency (gas fees) to be bought and sold, even traded for free.
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Mobile payment adoption is significantly higher in developing countries than in many developed nations, often due to a lack of traditional banking infrastructure.
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Optical computing could potentially use light to perform calculations significantly faster than electronic computers, because light signals can travel and interact much faster than electrons.
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Some surveillance technologies use predictive policing algorithms, which can perpetuate existing biases in law enforcement data, leading to disproportionate targeting of certain communities.
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