Shopping for a smartwatch can feel overwhelming. With dozens of brands offering hundreds of models, each packed with features ranging from essential to gimmicky, how do you know which ones actually matter?
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How does blockchain technology work?
Imagine a notebook that’s simultaneously held by thousands of people around the world. Every time someone writes something new in it, everyone else’s copy automatically updates with the same information. Now imagine that once something is written, it can never be erased or changed, and everyone can verify that their copy matches everyone else’s.