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Comment Re:This whole concept has always bothered me. (Score 1) 66

Gravity tends to clump stuff up.

But not the same way luminous matter (the "standard" stuff) clumps up. The mass distribution needed to explain spiral galaxies assumes that this "dark matter" remains at the periphery of the galaxy, keeping the rotational velocities constant as one moves away from the galactic center. So now, dark matter has to be something that doesn't interact with gravity (or curved space-time) the same way normal matter does. It curves space-time like normal matter does. But it isn't pulled into the gravity well (space time curve) toward the center of a galaxy the way other matter is.

Or, our model of gravity/space-time isn't quite right.

Comment Re:This whole concept has always bothered me. (Score 1) 66

It probably is all around us, but does not interact with regular matter a lot.

It appears not to at solar system scales. Because we can plot the trajectory of a satellite to intercept an object beyond the orbit of Pluto without considering its effects. But at galaxy scales, it distorts the effects of gravity and galactic rotation sufficient to be easily observable.

Magic stuff, this dark matter. It knows when to be there and when not to.

Comment What about CDR? (Score 1) 78

I have a bunch of old data stored on Kodak Gold CDRs from the 1990s. Kodak claimed 100 year archive life -- although I guess this was just a "best guess" based on accelerated aging tests.

Perhaps I should check them and make sure that bit-rot hasn't set in.

Otherwise I don't bother with backups, they're far too stressful. I mean... if you're backing stuff up you've got to choose the right media, keep a copy off-site and have a restore strategy in place. If you don't backup then none of this is a worry any more. I'm sure AI will fix everything if I get a hardware failure, corruption or malware on my active storage media.

Carpe diem solves everything!

Comment Re:Stop blaming processing...it's the ingredients! (Score 1) 84

Things get murky when you process food (like bread) and add a preservative or something

The preservatives are in the flour. I've made bread with unbleached, organic, non preservative flour. The finished loaves kept for about a week before the mold set in. The unused flour, not much longer.

Never again. When my doctor told me I needed more greens in my diet, I didn't think he meant mold.

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