Why the quantum internet should be built in space

The quantum internet is a dream that many technologists have expounded in recent years. The idea is to exploit the strange quantum properties of photons and electrons to send messages with perfect secrecy.

That has obvious application for governments and the military, but it is increasingly of interest to banks and other commercial operations that need to secure everything from contracts to financial transactions. What’s more, this kind of security is increasingly needed because quantum computers will be able to break the codes currently used to keep many messages private. […]

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