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Joined 5 months ago
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Cake day: June 6th, 2024

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  • Because the math checks out.

    For a high level description, QEC works a bit like this:

    10 qubits with a 1% error rate become 1 EC qubit with a 0.01% error rate.

    You can scale this in two ways. First, you can simply have more and more EC qubits working together. Second, you can near the error correcting codes.

    10 EC qubits with a 0.01% error rate become one double-EC qubit with a 0.0001% error rate.

    You can repeat this indefinitely. The math works out.

    The remaining difficulty is mass producing qubits with a sufficiently low error rate to get the EC party started.

    Meanwhile research on error correcting codes continues to try to find more efficient codes.















  • There are some attacks you are vulnerable to on public WiFi that a VPN can help with.

    More generally, whoever is transporting your data knows who you are talking to. If you don’t use a VPN, your ISP and whoever owns the router know what websites you are visiting (although they don’t know the specific content). If you use a VPN, your ISP and router know you are using that VPN, but not what websites you are visiting. Now your VPN knows what websites you are visiting, but they still don’t know what the content is.

    I hope that helps.