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Comment: Re:1024-fold (Score 2, Insightful) 210

by beelsebob (#47893719) Attached to: SanDisk Releases 512GB SD Card

No, a "traditional" GB is the one that was defined way before computer scientists got their hands on it –1000. The 1024 "definition" is actually simply a bug. Engineers working on early machines had a choice – take a bug that pretty much no one would notice on an early machine (because files over 1kB were very rare, much less ones over 1MB), or take a massive perf hit. It takes a long time to compute the size of 20 files when a division by 1000 takes 300 odd cycles on a 10kHz machine. It doesn't take such a long time when a right shift 10 takes 1 cycle.

Bottom line, early engineers decided a known bug was better than the enormous perf hit of getting it correct. That doesn't mean that what they did is now correct. It means it remains a bug in some OSes.

Comment: Re:Quite accurately? (Score 1) 170

by spitzak (#47886191) Attached to: Universal Big Bang Lithium Deficit Confirmed

The model can give a "quite accurate" expected value, even when wrong. Example (note numbers are completely made up):

Say there is model A which predicts 2.5-2.6% lithium.

Say there is another model B which predicts 2%-8% lithium.

Say in reality there is 1% lithium.

Both models are apprently wrong. But Model A is more "accurate" in making the wrong prediction. Therefore the text in the article is perfectly correct.

Get it?

Comment: Re:Empirical Data Trumps Information Theory (Score 1) 211

by spitzak (#47874933) Attached to: Information Theory Places New Limits On Origin of Life

Actually it will be a lot worse than Venus and due to a different cause in that the sun would actually be irradating many times more energy on it, and possibly even engulfing it in hot plasma. Venus is heated by the insulation of a huge amount of CO2, the Earth with that much CO2 would be equally hot, and Venus without it would be just a tropical Earth. And when the sun expands the CO2 will be irrelevant (I would think the heat would actually make it escape to space), not that that is going to help any.

If you have to ask how much it is, you can't afford it.