• Quantum computers will not appear soon, despite optimistic forecasts.

• A quantum computer uses the strangeness of quantum states to perform calculations.

• Qubits are the basis of quantum computing, but they are fragile and easily destroyed.

• Decoherence is a major problem that hinders quantum computing.

• Noisy quantum methods (NISQ) - one of the ways to correct errors, but has not yet reached the desired level.

• Alternative methods include topological states, but their implementation remains undefined.

• The possibilities of quantum computing do exist, but their implementation can be difficult.

This is timely with Michio Kaku going on another media hype tour, and AI at peak hype.

There’s definitely a lot of ueless hype surrounding it, and anything really with the word quantum in it. Quantum computers will be really good at a specific set of problem-solving, but a lot of the hype around them makes them out to be some sort of direct upgrade to normal computers which just isn’t true