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BearOfNH

263 karma · joined April 7, 2007

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BearOfNH··on HN long term change
I'd be interested in a breakdown of the 10 or so most popular source sites on a (say) month-by-month basis. You'd expect to see a lot of articles referencing Google, techcrunch, HN and the like but I'm also surprised by the number of articles from the NY Times, WSJ and such.

Maybe determine "popularity" first by number of articles and then again by score.

BearOfNH··on Has Amazon EC2 become over subscribed?
[...] so it's not clear exactly what Amazon is doing.

Shouldn't Amazon be providing customers with reports to this effect? It can't be that difficult to say that within each 10-minute interval i you got X_i% of a CPU, received N_i packets, etc.

This is the sort of data Amazon should collect themselves to analyze the systems within the cloud, so the customer never (OK, rarely) sees a problem.

BearOfNH··on Show HN: My latest pet project, pydroid
Doesn't seem to work on Python 2.5.x under WinXP. I get the DLL load failure message "This application has failed to start because python26.dll was not found."

The installer was happy finding Python 2.5.

Oh well, I should probably upgrade to 2.6 anyway ...

BearOfNH··on Problems with Hash Tables
Hashtable routines are far easier to write and debug than balanced binary tree routines.

Of course there are open source implementations available for both. But I would guess it is easier to write your own hash function than learn to use somebody else's, and easier to learn somebody else's B-tree routines than to write your own.

So we live in a world with O(N) hash implementations and O(1) B-tree implementations, for N programmers.

BearOfNH··on Ask HN: Anybody here got use for micropayments?
Thanks, I read the html-linked content. He talks about the "mental effort" required to make a micropayment and how that's a hindrance to the technology. I agree in that I wouldn't want to take the time to "OK" every payment. But that doesn't kill the entire concept.

It seems what we need is a very, very simple payment model. Suppose, for example, I tell my browser(s) that I am willing to pay up to one cent for an article from the Wall Street Journal. When somebody from HN posts a pointer to a Walt Mossberg review of Apple's latest gadget, the link appears in some distinctive format, like a green-colored link (or with a '$' suffix, etc.) When I click the link, my wallet is debited one cent and the article appears. There's no extra effort on my part, except for an occasional wallet reload.

This would seem like a technically feasible approach that avoids the mental effort of going through with a separate purchase step. OK, not everybody is going to be technically astute enough to set themselves up with whatever wallet technology is used...but this is just another problem to be solved. Maybe PCs and netbooks come with built-in wallets preloaded with a few dollars or euros. Maybe wallets are set up via multi-level-marketing, so the tech-savvy set up their friends and family. Maybe something else.

Point is, I don't think it's an impossible problem. We just don't have the right models yet.

BearOfNH··on Contrarian Investor Predicts Economic Crash in China
I think it's unfair to claim "built-in decay" is unique to leveraged ETFs. This happens with all financial instruments: stocks, funds, ETFs, futures, options, etc. Any price that goes up X% and then down X%, or vice versa, ends up lower than the starting point. For any instrument.

The only difference with the leveraged instruments is the corresponding loss is greater. But that's the whole point of using leverage -- the gain is greater, too.

BearOfNH··on "Terra" is Rot13:"Green"
Yes, it comes from the Latin. So maybe this is not a coincidence, since Julius Caesar invented the ROT13 cipher.
BearOfNH··on 768-bit RSA, now officially not enough
As I understand it, PGP uses RSA just at the outset to generate a 128-bit (or 256-bit or whatever) key for the rest of the message. So the PGP key length is a one-time cost (per message).

Many years ago (early 1990s) I generated a 1024-bit public key which was the limit at the time. A lot of Moores have passed since then. Since key generation and usage is no more than O(bits^2), possibly only O(bits log bits), I don't see why people aren't creating >= 8192-bit keys these days.

Or maybe they are. The MIT keyserver is down at the moment, at least if I ask it for anything.

BearOfNH··on The Great Sugar Shaft
The 2 million people in Nebraska get as many senators as the 37 million in California.

This of course is by design. The state of Nebraska gets as many Senators as the state of California. Senators represent states, not people. Prior to the 17th Amendment, Senators were generally chosen by state legislatures.

Do farmers get federal pork? Sure, and it's just as wrong as populous states getting federal pork for mass transit. The real problem here is the concentration of power in the federal government, which is far removed from the intent of the Founding Fathers. See the 9th and 10th Amendments.

The case of sugar is particularly egregious as we are subsidizing growers who are destroying the Everglades. OK, maybe that's a bit of hype, but it's not that far from the truth.

BearOfNH··on User uploads fake flag to Wikipedia, flag companies run with it.
Several years ago I updated a particular Wikipedia puzzle writeup and included software to generate the (nontrivial) puzzle artwork. At which point I got my hands slapped (there should be a verb for that), and was told Wikipedia was not a code repository.

Evidently Wikipedia is also not a repository for original artwork.

I suppose there's some sense to that, what with the high price of storage and countless contributors wishing to upload original works.

BearOfNH··on Announcing the Firefox 4 Design Challenge – The Home Tab
I don't get the point behind having a "home page". Maybe if I owned an active website or blog, I'd have reason to start there. Maybe.

The last thing I want is additional startup latency, so I set my home page to about:blank. Am I missing something? Maybe this is fodder for Ask-HN.

BearOfNH··on Good Guys Bring Down the Mega-D Botnet
[Citation Needed]
BearOfNH··on Berkeley High May Cut Out Science Labs
Before we (OK, "they") go making changes, I'd like the school to ask the underperforming students what the school can do to help them improve. While I suspect a long list of wisecrack responses, it's still remotely possible the troubled students have a vague idea what really needs to be done.
BearOfNH··on People will pay for content
There's always a market (here, an audience) for personal attacks on the wealthy and successful. It comes with the territory.

For his part, pg is leading by example -- laughing all the way to the bank.

BearOfNH··on How do I know China wrecked the Copenhagen deal? I was in the room.
[Citation Needed]
BearOfNH··on Skribit Finally Launches, Aims to Cure Your Writer’s Block
Only if you've never done stupid shit like that.

Seriously though, it seems wrong to put an .m4v file behind the "What is Skribit?" on the home page. None of my systems can play that. Is that an iTunes file? I don't 'do' iTunes, though I may be alone in that respect.

BearOfNH··on The reason why banks are suddenly repaying their bailout funds
It took a while, but I finally detected the sarcasm above.

I am not making this up: Just yesterday I went to reorder checks on-line, and got told "FAIL" and to contact my bank. So I called the main branch in this state and a human being answered. I told her my tale and she said she could help me right then, which she did. Are banks again serving (as opposed to "servicing") their customers?

BearOfNH··on 50 Years of Stupid Grammar Advice
Good article but he digs too deep. I would be happier if students just learned to use "should have", not "should of", and related constructs. This seems prevalent even among the college-educated these days.

Does a programmer's spelling and grammar correlate with the quality of his[/her] code?

BearOfNH··on A look at decaf antiforensics anti-cofee tool
Agreed, it's just a scratch on the surface. But if the authors were to open-source it and develop a plugin scheme they might find a lot of contributors, a la Firefox or iPhone app store. Maybe not as many, but with similar enthusiasm.

Not sure I approve of antiforensics because I suspect COFEE could help convict a lot of criminals. On the other hand it seems an invasion of privacy and the US 5th Amendment IMO.

BearOfNH··on The Australian Government has greenlighted compulsory internet filtering
I for one hope you'll be kind enough to blog your Estonian experiences, be they good or bad.

Or is there already a website that specifically aggregates reports of the form "I moved from <X> to <Y> and found <Z1><Z2>...<Zn>"?

BearOfNH··on Why are Europeans the whitest people on the planet?
[Citation Needed]
BearOfNH··on The God Equation?
The earth continues to orbit the sun, puppies still lick your hand and scientists barely notice crap like this getting scattered about. The Internet is chock full of it.

Yet we are to believe the AGW crowd zealously hoards their taxpayer-funded data sets because they fear this kind of work will result and it will engender bad publicity and tarnish all their efforts.

Or maybe they have something more solid to fear.

BearOfNH··on Programming Puzzles, Chess Positions and Huffman Coding
En passant only needs 3 bits to encode the file ("column") containing the eligible pawn. The rank ("row") is inferred from the context -- whose move it is. (W=5, B=4)

3 bits always suffice to indicate either (a) a pawn en prise (as it were) or (b) no en passant possible because there's no enemy pawn on the proper square for that file. (You can't have pawns on all 8 files and at the same time have one eligible for en passant capture, since you've got to have an opponent's pawn on an adjacent file. So in the usual case of no en passant you just pick a file not occupied by a pawn of the right color, alternatively one of the right color not adjacent to a pawn of the color to move. This is always possible).

BearOfNH··on List of Algorithms
Missing: motion detection

Also missing: any interest in what's missing. Maybe that's a bit harsh, but if it's been thru Reddit already you'd think they would have a way to submit additional requests.

BearOfNH··on LED Bulbs Save Substantial Energy
How does this work with a lampshade or a wall sconce? Putting the light through some kind of filter must (?) narrow the difference between the kinds of light. In which case I've got a lot of lights that can be upgraded to LED.

I'm willing to pay the high initial cost of LED lighting, assuming the light is of good quality (brightness AND color-with-lampshade) and the long-term savings are real. I suspect most HN readers come to the same conclusion.

BearOfNH··on Steve Jobs intervenes, approves Knocking streaming video app
This is just going to be used for porn.

Thereby guaranteeing iPhone (?iPorn?) supremacy, at least until it's ported to Droid.

BearOfNH··on Bret Stephens: Climategate: Follow the Money
We should hold scientists to a higher standard than any organization with more than 3 employees. Especially if they are spending Other People's Money.
BearOfNH··on McIntyre: The deleted data from the “Hide the Decline” trick
We're being asked to believe that starting around 1960 tree rings "suddenly" no longer reflected local temperatures, so we shouldn't rely on them after 1960.

Doesn't this also imply that looking backward tree rings might be untrustworthy any earlier than some starting date? That in fact tree rings might work for a while, then vary for a while, then work again? How can anybody honestly claim that SOME tree ring evidence is usable and SOME is not -- and they know exactly which is which?

My bet would be the thermometers are wrong and the tree rings right. See, e.g.,

http://gallery.surfacestations.org/main.php?g2_itemId=831

BearOfNH··on Ask HN: What country would you lend money to?
The formulas used to adjust TIPS principal and interest are based on official US Gov't. statistics, which means they are slightly more trustworthy than a politician's promise.

Still, if inflation is your concern then better a halfhearted adjustment than none at all.

BearOfNH··on Climate center's server hacked, revealing documents and emails
Is there a plausible case that we cannot afford to wait?

If it isn't caused by humans it's unlikely to be fixable by humans.

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