Not quite - the hit rate is 70 percent, which means that 70 percent of the messages that are spam will never reach your inbox, and the other 30 percent will. The number you're after is the false alarm rate, 0.3%, which tells you that only 3 out of every 1000 non-spam messages will be incorrectly flagged as spam.

My initial reaction to these numbers was to wonder what percentage of e-mail is spam. The article says it's a whoppingly high 90.4%, which I think makes the false-alarm rate more than acceptable, as (by my calculations) only one out of every 229 e-mails flagged as spam will be a real e-mail. In contrast, if, say, only 1% of e-mails were spam (in which case we probably wouldn't need a spam detector at all, but still), 3 out of every 10 e-mails flagged as spam would actually be real e-mails.

Of course, this is just a long-winded way of noting that hit rates and false alarm rates aren't terribly useful without taking the base rate into account.

I have good news and bad news for you.

The good news is that, when it comes to Alzheimer's, being bilingual appears to be beneficial. A researcher by the name of Ellen Bialystok has looked into this question; in a recently published paper, she and her coauthors concluded that among people who have regularly used two languages for most of their lives, the onset of dementia is delayed by an average of four years. (By "dementia", I'm referring to severe age-related declines in mental functions, of which Alzheimer's Disease is the most common form. The Bialystok et al. paper specifically states that their conclusions hold true for Alzheimer's as well.) Note that they don't make any claims about whether this conclusion applies to people who learned to speak multiple languages as children but only use one in later life, or people who learned a second language as an adult and use multiple languages daily: those populations might benefit from a similar delay, but they weren't tested for this paper.

On the memory front, I don't know about age of onset, but bilinguals behave differently than monolinguals on memory tasks throughout their lives. Here, there's both (more) good news and bad news. (I'm going to be cribbing some of this from another one of Bialystok's papers, which, as with the paper referenced below, you'll probably need to access at a university to read more than the summary.) Someone who grows up multilingual, while having the obvious advantage of being able to speak multiple languages, tends to be less proficient in each of those languages than monolinguals - that's one of the consequences of splitting your speaking and listening time between several languages. As a result, bilinguals tend to have smaller vocabularies (within each language) and perform worse on word retrieval tasks than monolinguals throughout their lives. So, bilinguals are worse than monolinguals at memory tasks that rely on verbal recall (e.g., "Memorize this list of words and then, in a little while, I'll ask you to tell me what they were.")

At the same time, there's some evidence that being bilingual actually helps you on other kinds of cognitive tasks. Bilinguals perform better at some tasks that place big demands on short-term memory, and, more controversially, on some tasks that require what we call "conflict resolution", situations where you have to choose between two or more possible responses (the Stroop effect is the most famous example). They're better at conflict resolution tasks, so the theory goes, because they've spent their whole lives choosing between multiple competing representations (one per language) for each word. The result of these advantages is that bilinguals tend to be better than monolinguals at nonverbal memory tasks (for instance, recalling an ordered sequence of blocks).

As for how these findings are affected by aging, I think that the relative deficits and advantages present in young adults should carry over into later life. For example, another researcher, Tamar Gollan, showed that bilinguals' naming deficits persist with age. If that's true, then while I don't know about age of onset, I would expect older bilinguals to have worse verbal memory, and better non-verbal memory, than their monolingual counterparts.

I work in a psycholinguistics lab that studies, among other things, the effects of being bilingual on cognitive functions, both linguistic and non-linguistic. While we haven't ourselves studied this question, I expect that cursing in a nondominant language would be less effective at prolonging the amount of time someone was willing to hold their hand in cold water, based on research that shows that words in one's nondominant language evoke less of an emotional response than words in one's dominant language.

I can't remember which papers support that statement, but a Google search reveals (at least) one paper claiming that bilinguals curse more often in their dominant languages (and while I haven't read it, I expect they controlled for frequency of use). If one of the purposes of swearing is to relieve emotional tension, that conclusion would make the most sense if swearing in your dominant language provided a greater emotional release. It wouldn't surprise me too much if the same thing was true for pain.

This strikes me as a logical inversion of the "time eater" clock covered in Slashdot last year. In that timepiece, a giant bug, which the maker called a "chronophage", appeared to climb along the top of the clock, eating the seconds as they passed by. It seems only natural that time should get its revenge by eating bugs in return.

Second comic on the page: http://books.google.com/books?id=vWBwU5gLo60C&pg=PA25

But did they find Zed's dead baby?

As long as your potential employer isn't Feeling Lucky when he decides to do a background check, you should be fine.

I'm pretty sure the bible never talked about ass-whores.

Is it just me, or was alerting a newspaper to their theft the wrong way to keep it secret?