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Comment Too late. Way too late. (Score 1) 246

26 years ago, I was 12 years old, sitting with my 9 year-old sister, on the carpet of our parents' bedroom, watching tvision via UHF -- how's that for dating myself?

A commercial came on, for what I do not recall, and as with nearly ALL commercials back then, it ended with a big giant telephone number. But unlike most, it had a small domain name beneath. I turned to my baby-sister and said "look sis', one day that domain name will be bigger than the telephone number".

A year later, I had started my web development business. Today, I'm happy, successful, completely self-taught, and all is good.

Obama's way too late. If school children today begin to learn to program, in twenty years from now, they'll be the perfect blue-collar drones that pick tomatoes today.

So you live in a country that's immigrating vast numbers of people from china and india, and you want to focus your children on programming 26 years too late.

Instead, why not notice that your country was built on manufacturing, and now you've got no one left to do the "unskilled" jobs, you know, the ones that no one knows how to do anymore. Like the brick-laying, that is probably the highest-paying job in the whole of the U.S.A. -- considering education costs of course. I think you're paying $80/hour for brick laying these days?

Comment I'll go the other way here, spearphishing (Score 3, Insightful) 244

In the past, spam was mass-flung with no real power. Filtering it was a relatively easy task, with an acceptable false positive rate and an even more acceptable false negative rate.

Today, while those spams still exist, between e-mail client junk folders and greylisting, the mass-flung spam is little more than an annoyance -- it doesn't have any real negative effect in term of dollars. Virus scanners catch those attachments pretty well too.

But now we have spear phishing -- real-world big-business, hand-crafted, artisan spamming. No spam filter is ever able to catch any of those. And they do real damage creating real monetary losses for big and small business alike.

So if your spam filtering business can catch the easy ones that do no real damage, and can't catch the hard ones that do the real big damage, then who's your paying market?

Comment I said it last year (Score 1) 165

...so I'll say it again. Your front door is protected by a 5-digit key, and it's next to a few dozen glass windows.

Maybe two of my passwords actually protect something more valuable than my house when I'm not in my house. None of them protect anything more valuable than my house when I am in my house.

Oh, I also said that what separates my 140kph car from an on-coming 140kph car is a 3inch wide strip of yellow paint. Sometimes two of them.

Comment Re:Metric Conversions? (Score 1) 123

Instantaneous is always a mathematical construct. It does not exist in the real world. So you can call it an average, or a determination, or an expectation, depending on what you've actually done in order to calculate it. But since you didn't measure it over an instant, there's no difference between measuring ten times per second and describing the middle, or measuring three times a year and describing august. You don't know what the velocity was at that instant, because that's not actually measurable. You're always averaging over time.

If you measured 100 times per second, the object could still have suddenly come to a dead-stop for 0.005s and you'd never notice. In fact, it could have come to a dead-stop every 0.01s for 0.005s. So it could actually be going twice as fast as you measure, half the time, and be a dead zero for the other half, and you'd have no idea.

To magnify that to macroscopic levels, if I make $10'000 every second month ($60'000 per year), my average instantaneous revenue is $5'000 per month. Except I'm still broke in January, until the end of February, before I get my first pay-cheque. So I don't have $5'000 on February 1st. But you didn't look on February 1st. You looked on March 1st, saw $10'000 in my bank. From that, you can "average" the monthly, but you cannot "determine" the monthly.

Comment Re:Metric Conversions? (Score 1) 123

units should not be picked to a standard. Units should be picked to the actual unit measured -- not the accuracy. Accuracy should be in significant digits. Units should be in what was actually measured. If you measured around the world one mm at a time, then yeah, use mm, because that's what you used. There's nothing wrong with more numbers. There is something wrong with expressing something that you didn't do. That's why my GPS doesn't know my speed when I'm on a steep hill, it's totally wrong.

Standards are only useful when relating to others using the same standard. That benefit comes at the cost of comprehension. That works in math, and pure math alone. It doesn't work in any applied science.

The shorter the ruler, the longer the shoreline.

The door can't be half open, just like it can't be half closed. There are threshhold effects in this world. Every time you average, you eliminate the possibility of a threshhold effect.

Comment Re:Metric Conversions? (Score -1) 123

...in a single instance, you didn't go anywhere. Over t=0, d=0 too -- always.

That makes the term "instantaneous velocity" an oxymoron.

You don't have a speedometer than can measure speed instantly. It can only measure speed over some period of time. You, as a human, can believe it to be instantaneous, and you can treat it as such, but it remains not so.

Comment Re:Metric Conversions? (Score 1) 123

...and that would be the incorrect part. That's my point. They aren't measuring anything per hour. They could. My GPS does -- says distance covered in the last hour. But the speedometer doesn't. I don't know what the measurement frequency is for a typical speedometer. I do know that it can't drop from 200kph to 10kph in less than a second, so the physical needle is, in and of itself, an average due to a physical lag. I would presume that, like a bicycle, the speedometer measures axel revolutions, multiplied by expected tire circumference. In which case, I would expect it to measure each rotation.

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