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Comment DX? (Score 1) 521

Any word on whether a new DX is on the horizon? The Amazon website almost acts like it doesn't exist any more!

I really like reading on the larger screen, but when I compare the weight to my SO's regular Kindle, the DX feels like a brick.

The Fire doesn't really appeal to me, I'd rather stick with eInk.

Comment Study Design (Score 1) 286

Note that this was an observational study, not an experimental study, and so the risk of counfounders is high. For example, it is conceivable that people who develop prostate cancer then lose their taste for coffee even before being diagnosed. For years, the cigarette industry took advantage of the limitations of observational studies by arguing that an unidentified genetic factor made people want to smoke, and also put them at risk for developing lung cancer, but that the smoking and the cancer weren't related. A well-designed experimental study could randomly assign people to drink or not drink coffee, and then determine the incidence of prostate cancer in each group. Obviously, designing a similar study for cigarettes would be unethical given the weight of evidence that smoking is bad for you.

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