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Cake day: April 14th, 2024

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  • One has to find the right balance between security and comfort, and this entirely depends on the threat model one has. Nowadays, I will always enable full-disk encryption on all of my devices, even if I then decide to store the keys in TPM and unlock the disk at boot.

    I have at least 5 half-broken HDDs sitting around, completely unencrypted, I have no idea if they still work, but they are surely full of private data that I would like to have purged. I fear mechanical destruction might be the only solution for some of them, but just wiping them manually is more effort than doing nothing, so I guess they will still be around for some time. And with SSDs, there is no reliableway delete all data.

    With encryption? Just delete the key and you are done.

    The threat model changes in the future? Easy, the data is already encrypted.



















  • 3 weeks, roughly in line with faster Space Shuttle turn around times

    The shortest shuttle turnaround time was 55 days. Almost three times as much as Falcon 9. The fastest post-Challenger turnaround time was 88 days, I believe. After Columbia, the fastest turnaround was around 5 months.

    NASA claimed that the shuttle could achieve a turnaround time of two weeks (page IX). It looks like SpaceX is not the only one setting unrealistic timelines?


  • That was some Columbia-level damage that Starship experienced during reentry, and yet it successfully retained control authority, completed a soft landing, and everything was live streamed. Amazing!

    The booster seems to be almost ready for the first catch attempt (depending on the accuracy of the landing).

    I wonder to what extent they can retrofit Ship 30 to reinforce the hinge of the flaps, and how long that is going to take? On the other hand, the ship did survive, so maybe they will just repeat the launch without any major fixes, and try a few different things? (Deorbit burn, maybe even suborbital test-mass deployment, or more aggressive tests of the heat shield?)

    The next-generation Starship design has less exposed flaps with reinforced hinges already. But is it already in production?