Even if it is not a Japan-wide bank transfer system, a "system failure" is still a bloody good thing.

I was blue-cold just now when the domain name system on my main PC stopped working.

As a last resort, I implemented a "router reboot," which was one of the longest 40 seconds of my life.

I can't tell you how many times I've been in the situation of "a machine that malfunctions and then completely stops working after a reboot.

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This is why I try to make morbid backups, but this "backup" is also not very reliable.

This is because even if the entire OS is image-copied, hardware specifications change on an ever-evolving basis.

My feeling is that the maximum "backup" lifetime is six months. After that, they become mere hard disk-consuming files.

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What is still incomprehensible to me is the mind of the OSS developers who change the configuration of system files that have been working without problems every time they upgrade the OS version.

- What is the need to move /etc/resolve.conf to the DHCP configuration file?

- If you're going to provide it as a GUI, I'd like to see it designed so that it can all be done at once.

- I mean, who in the world is stupid enough to change legacy settings every time the OS is upgraded?

- It's pretty much a lie that Docker is multi-OS compatible (you'll see if you try it), and some OS versions don't work at all.

- And the Rasverry PI is just a chip that's been changed, and the problems are ragged out.

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I confidently can say that the threat to the system is more of a "system replacement" than a "cyber attack."

When a system is "replaced," there is a high probability that the system will fail.

No matter how much you throw a tantrum, what doesn't work doesn't work -- that's how computer systems work.

The banking system will continue to shut down, airplanes will stop flying, concert tickets will not be available, and your medical records will disappear.

This is what a "digitalized society" is all about, and we must be prepared to live in such a society that is based on the premise that the system will stop working.

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I live everyday thinking, 'The system stops just before the deadline' and 'The system always fails after a long vacation.

This level of detail is elementary to digital systems.

Until now, it was natural disasters such as "earthquakes," "fires," "typhoons," and "floods" that dealt a blow to social infrastructure, but now the threat of "cyberattacks" and "system replacements" have been added to this list.

First, I think this needs to be taught in the compulsory education process.