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RE: Why You Should Be Excited for the Quantum Revolution!
Quantum computers will change everything dramatically. Even current BTC and Steem systems will be notoriously outdated after that in terms of cryptography security. That said, quantum computers have the same power like conventional computer. "Power" in Computer Science Theory means they recognize the same language, meaning, they can try to solve the same set of problems. Theoretical limits still stand. The main practical difference is the speed of performance since quantum computers will do it much faster.
Thanks for the clarification!
However, I believe there will be some cases where quantum computers can implement unique algorithms which can't easily be replicated on a classical computer. For example, take a look at Shor's algorithm. While we certainly can program a classical computer to run this algorithm, it would require additional steps to complete while with a quantum computer entanglement allows us to relate the individual qubits in the same calculations.