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Cake day: June 10th, 2023

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  • Step away from hardware constraints for a moment, and consider the OS:

    If the OS says a file is deleted, under no circumstances should the OS be able to recover it. Sure, certain tools may exist to pull it back; but it should be unavailable to the OS after that. And yet, apparently a software update was enough to recover these files. Thus, the concerns about data safety in an environment where the OS cannot be trusted to remove data when it says it has been removed.











  • Yep, airships aren’t overpressurized like a balloon - any leak will be extremely slow, as the heavier ambient air gradually displaces the helium inside the airship through whatever hole might be created. As I understand it, one of the big maintenance issues they have is even finding the holes from normal wear and tear. The usual failure scenarios involve storms with huge pressure changes.