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But how does bitcoin actually work?25:16

But how does bitcoin actually work?

18.1M views • 9 years ago
3Blue1Brown
3Blue1Brown explains the math and mechanics behind Bitcoin visually: ledgers, digital signatures, proof of work and the blockchain, building up a decentralized payment system from first principles.
Why Russia is Invading Ukraine31:56

Why Russia is Invading Ukraine

21.7M views • 4 years ago
RealLifeLore
RealLifeLore explains with maps why Russia invaded Ukraine, focusing on energy resources, security buffers, Black Sea access and Crimea's strategic value.
Breaking The Creepy AI in Police Cameras35:49

Breaking The Creepy AI in Police Cameras

3.8M views • 1 year ago
Benn Jordan
Benn Jordan explains how Flock Safety's license plate cameras log and share vehicle locations, and explores how adversarial AI can defeat them. It covers weak security and the surveillance risks of private police-camera networks.