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What Exactly Are A.I. Companies Trying to Build? Here’s a Guide.

Amazon, Microsoft, Google, Meta and OpenAI plan to spend at least $325 billion by the end of the year in pursuit of A.I. We ...

If quantum computing is answering unknowable questions, how do we know they're right?

Quantum computing promises to solve the seemingly unsolvable in fields such as physics, medicine, cryptography and more.