Technology
Which posts fit here?
Anything that is at least tangentially connected to the technology, social media platforms, informational technologies and tech policy.
Rules
1. English only
Title and associated content has to be in English.
2. Use original link
Post URL should be the original link to the article (even if paywalled) and archived copies left in the body. It allows avoiding duplicate posts when cross-posting.
3. Respectful communication
All communication has to be respectful of differing opinions, viewpoints, and experiences.
4. Inclusivity
Everyone is welcome here regardless of age, body size, visible or invisible disability, ethnicity, sex characteristics, gender identity and expression, education, socio-economic status, nationality, personal appearance, race, caste, color, religion, or sexual identity and orientation.
5. Ad hominem attacks
Any kind of personal attacks are expressly forbidden. If you can't argue your position without attacking a person's character, you already lost the argument.
6. Off-topic tangents
Stay on topic. Keep it relevant.
7. Instance rules may apply
If something is not covered by community rules, but are against lemmy.zip instance rules, they will be enforced.
Companion communities
!globalnews@lemmy.zip
!interestingshare@lemmy.zip
Icon attribution | Banner attribution
view the rest of the comments
They say “billions of years” but that sounds like just the sort of thing a stray cosmic ray would ruin.
Maybe they’re planning on using a checksum for error correction like they do with RAID.
On that timescale, what are the odds that the checksum is still reliable?
Why would it be any different from the real data? Checksumming is basically just writing extra copies with math.
I'm asking why it would be more reliable if it has the same vulnerability to being corrupted.
Checksums are redundancy.
Right, but if the checksum is corrupted...
Yes Mr smarty pants, if all copies of data are corrupted the data is lost. More redundancy is more protection.
It isn't writable
So? ROM uses checksums too.
Say checksum again
Checksum
What would be the point? You would just know that the data is invalid. You couldn't fix it
Use the checksum to correct the read, just like always. You don’t repair damaged ROM anyway.
You can't
That's not what a checksum is
Don’t make me show you the wikipedia article.
Can't argue with that logic.
I guess I will go back to using dd to hack the Pentagon
They probably mean EC code? That said, you can use checksums to "correct" errors if you have redundant copies of the data (by reading from the other copy if one copy has a bad checksum)
True but that isn't possible with just a checksum and a read only medium