Aug 19 2010

How stupid is the 400,000 cat canard?

Referring to this story about how one unspayed cat can spawn 420,000 cats in 5 years, I wanted to see, just how stupid is this? Of course, it seems pretty stupid on a practical level. But that's not enough to say.

There are a few parameters that are relevant in the model. Suppose we start with just one female cat, who gets pregnant on day one. Cats can have from 3-5 litters annually, meaning a 2-4 month gestation period. Typical litters are 3-6 kittens. Cats need 5-9 months to reach maturity. And, of course, only female cats, presumably about half of the cat population, can have kittens. Now, the model is exponential growth, and so I expect it to be pretty sensitive to the input parameters. Just how sensitive?

At t=0 there is just one cat. Call C(t) the number of cats at time t. If our time step is 3 months (average gestation time), then

C(3 months) = C(0) + C(0)*(size of litter) = 1 + 1*(size of litter)

Now, in ANOTHER 3 months the cat may have gotten pregnant again, and will therefore be giving birth to another litter. The cats born at 3 months have not reached the age where they can have any kittens.

C(6 months) = C(3 months) + C(3 months)*(size of litter)*(probability of getting pregnant again)

Now, at 9 months, the kittens born in the first litter could potentially have a litter of their own. The number of eligible pregnant females should be the number of cats who were alive 6 months ago, or two time steps in our scheme, divided by 2.

C(i+1) = C(i) + C(i-2)*(size of litter)*(probability of getting pregnant again)/2

We can now just iterate for twenty time steps to find the total number of cats alive in five years due to one unspayed cat.

cats

The stupidest possible outrageous model would be to say that all female cats get pregnant every cycle, and all have a litter of 6. This is the "Kitties take over the world" model, the blue line. The result is 1.2 MILLION cats in 5 years. Exponential growth.

Now, supposing that the probability was still good of getting pregnant (0.8) but that the average litter is reduced to 4. This is the "Sexy cat" model (black line, in inset), and it still results in a TRULY MASSIVE number of cats, 45000, but note that this is already about a factor of 10 below what the silly people say. A sensible model with probability of pregnancy =0.3 (something like 3 litters a year) and average litter size of 4 results in 638 cats.

This model obviously doesn't take into account cats who die or the dependence of probability on the number of cats, reducing the food supply. And actually, it will be pretty sensitive to the average gestation time, though I believe that is far less variable than the other parameters. But 600 isn't too outrageous, given the number of cats taken in by shelters every year. It's a scary number. Spay and neuter.

Aug 10 2010

Abandon all hope

In the past month, we saw the Obama administration finally go to war. Unfortunately, the fight they chose to pick wasn't with Republicans, it was with Democrats and liberals. First was the disgraceful Sherrod firing. The administration worried about how Fox News would portray the story, never mind fact-checking, and had her canned, Vilsack's claims notwithstanding. When it turned out that the story was totally false, Robert Gibbs said he didn't blame the media:

How did we get into -- how did we not ask the right questions; how did you all not ask the right questions; how did other people not as the right questions, and go from there. I'm not faulting the media, but I -- no, no, hold on. I'm not here to fault the media. I've apologized on behalf of the administration. ... We made a mistake on that and I think many involved in this made mistakes.

But of course, he is blaming the media in this quote. This is not even to mention that the response to her firing was tardy.

But Gibbs' tirade this morning shows that the administration knows they are down and out. And to whom did Gibbs direct his words? Toward the only demographic which has a majority approval rating for the administration:

I hear these people saying he's like George Bush. Those people ought to be drug tested. I mean, it's crazy. ... They will be satisfied when we have Canadian healthcare and we’ve eliminated the Pentagon. That’s not reality... They wouldn’t be satisfied if Dennis Kucinich was president.

This is absurd on many levels. Obama, on civil rights, has taken many troubling stances. His use of Bagram Air Base is well known, as is his continuation of extraordinary renditions and his attempt to extend the National Security Letters to obtain email addresses without a warrant. Now, it is absurd to say that Obama is worse than Bush, insomuch as it appears the current administration isn't torturing anybody. But them saying he's being "like" Bush indicates they aren't lucid? I don't think so.

And no, I don't think liberals demanded single-payer or nothing else. It's true that some were out to "kill the bill", the Affordable Care Act, because it wasn't single payer. But some of us were baffled by it not being a negotiation point. Why not start with single-payer, and negotiate down to a public option or a medicare buyin? This is basic negotiation tactics. Moreover, the administration on many occasions said they would support a bill without a public option, rather than fighting for it. This in itself made sure Max Baucus wouldn't try too hard to get it in. And indeed, there was no real fight over it on the floor.

With the announcement that Robert Byrd's vacated senate seat is not safe, due to Joe Manchin being investigated by federal prosecutors, it appears that Republicans have a good, nay very good chance, of retaking the senate. Their chances to retake the House are quite good, I'd say better than even. So, can I see why the administration is exasperated? Maybe. But this is not a good time.

The administration has lost it, and Republicans are poised to retake both houses of congress. This isn't good.

Jul 28 2010

Rant: How did they fuck up the Silent Hill movie so bad?

My apologies to James Rolfe.

Silent Hill is a good franchise, all said. The first two games are quite good, with the second being among many people's top 10 of all time (including my own. Actually, I would rank it number 2 or 3). Now, I'm not a fanboy; I really didn't expect the movie to be great, nor did I care that it would probably not follow the games very closely. What I hoped was that it was at least Lynchian in sensibilities, heavy on mood or horror, or at least be a formula film, which I actually think are just fine.

So holy fuck was I not ready for this turd. Look, the games were so good, they could have made a decent movie just recreating the main scenes. Not great or anything, but just fine. And the game makers were involved in the movie, so it should have been good, right? But no, we got this stinking pile of vomit. Shit.

Ok, so instead of the protagonist Harry Mason searching for his daughter Cheryl, we get a woman Rose trying to find her daughter Sharon in the ghost town Silent Hill after a car crash. Silent Hill isn't a mysteriously deserted town, but a West Virginian city that has a multi-year coal fire burning under it. Fine, whatever. The movie sets itself up to be like the game. Rose chases Sharon into an alleyway, which soon becomes "the dark world." In this world, as in the games, the streets and walls are all twisted and rusty iron grating, and disgusting flayed corpses suspended by barbed wire populate the scenery. Hey, good, this is one of the main motifs of the series. And Rose gets attacked by the ghost children, just like Harry does in the prologue to Silent Hill 1. Cool!

But instead of the film going on like this, a largely isolated affair where Harry tries to unravel what the hell is going on, and punctuated by interesting but rare character interaction, Rose immediately meets up with Sybil, a female cop who also gets trapped in the town while she's chasing Rose on the highway. See, because we can't have characters remark on shit unless we put superfluous characters in for them to chat with while being attacked by innumerable dream creatures. Good, nothing will create tension than by turning this into a buddy film. They even have the obligatory enemies-become-friends interaction between them, as Sybil arrests Rose before letting her go after the attack by slightly creepy creature.

The monsters in here look stupid. I mean really stupid. Really, there was no need to go and change what the nurse monsters look like. They're crazed undead nurses wielding scalpels---that's pretty fucking scary in my book. Adding a dumb looking rock face actually makes them look less menacing.

Instead of Harry figuring out what goes on, Rose chases Sybil to a few locations before meeting up with the Borg Queen from Star Trek: First Contact. Yeah, I know it's just the same actress and not an actual Borg, but I can't actually tell that from this performance. ok, then Rose finally catches up with her daughter...except it's not her daughter? It's the devil? Then we are treated to a "here, let me explain this all" five minute film. What a horseshit hackey fucking plot device.

And they make the story worse! I mean, it wasn't exactly awesome to begin with, but the idea that Alessa Gillespie, being born to a cult like Rosemary's Baby to father of a god, then subsequently being burned alive, making her create the dark world of Silent Hill, is a pretty good idea. But no, we have to go and put the devil in. See, it's not Alessa doing this, it's fucking Satan. Jesus buffalo diarrhea fuck.

So in this dumbass Silent Hill, all the people who burned Alessa in the real world are trapped in the hell Silent Hill but living just fine and dandy inside the church. Why the hell can the people, who the Devil is trapped in a special world specifically to torment them, just hole up in a church IN HELL and be safe? We never are told. Anyway, the Devil needs Rose to let the Devil temporarily inhabit her body so that Rose can smuggle the Devil into the church. Jesus god let me die. Rose does it, she gets stabbed by the cult leader, and the devil comes out and kills everyone.

I haven't even mentioned the totally unnecessary side plot involving Rose's husband trying to find her. I'm not kidding; we spend at least 20 minutes of the film watching Rose's clueless husband arguing with the police and breaking into the hall of records to find out who his adopted daughter Sharon really is. News fucking flash, she's a reincarnation of Alessa Gillespie.

Ok, so Rose reunites with her daughter Sharon and the church gets cleared out by the Devil and Alessa, who finally gets her revenge on the cult that burned her alive. Rose and Sharon leave town in their car, which finally starts. It is made clear in the movie and the game that cars don't work in Silent Hill until you actually get to leave. So when Rose's car starts we know that it's over. Except it's NOT. Rose and Sharon leave Silent Hill and go home, but they are still in the hell/parallel universe. They get home, the whole world is deserted except them. Then the credits roll. What an assload of shit. I guess they're going to make a sequel or something, starring the father. And you want to know what the sad thing is? I'm going to watch the god damned thing! Because I hate myself and I need to be dicked around for another 90 minutes of bullfuck.

Jul 23 2010

Unsurprisingly, Prop 19 trails in Field Poll

CA Prop 19, about which I have always been pessimistic, is losing by 4 points. A Field Poll released July 9th shows it trailing 44-48, with more than three-fourths of voters being aware of the bill. Among those not familiar, it is opposed 2:1, indicating that when those voters go, the proposition will lose by even more. Opposition is a surprisingly high 47% among voters 30-39. With the major Democrats legislators sitting it out and Dianne Feinstein pushing against it, I think we can call this one "highly unlikely."

Jul 20 2010

What I don't know

I would describe my current outlook on the world as 'worried, but weary'. That is, I know what is wrong with the world, I can describe it in some detail and with the important numbers. I can cite the important policy questions and possible alternatives. And yet, at every juncture, I am unable to pick any of the proposed policies, since none of them is promising.

On the economy, things are looking more and more like a depression. The recession will technically end, but our growth will be, well, depressed. Current long-term joblessness is double what it has been at any time in the last 50 years. Production capacity is huge compared to actual production, meaning that a return to employment is nowhere in sight. In fact, if the current job production was to continue, and it may not, it would be a staggering 12 years until anything like full employment. Foreclosure rates are still sky-high.

What should we do? Nothing but lament, in my view. The real answer is that we should invent a time machine, and go back and pass a stimulus that was in proportion to the GDP of this nation and the severity of the conditions. At the same time, we should show Ben Bernake the 2010 inflation numbers and explain to him that his managing of the liquidity trap will be woefully inadequate, and that monetary policy needs to buck the icon of Carter-era money-printing stagflation. These two things, even within my time-traveling scenario, are likely impossible anyway, because 1. Congress couldn't have passed a larger stimulus for political reasons and 2. the Fed currently lacks the legislative backing to throw money out of helicopters, which is what they need to do. All of the current policies are set, they really can't be changed even if the right path ahead was clear. Pile on top of these the fact that a lot of Obama's economic team is in favor of ghastly fiscal austerity, and the doom really begins to set in.

On energy, we have been unable to move public opinion on anything. A huge majority continues to support expansion of offshore drilling, despite the fact that it is not of the scale that allows for energy dependence, entrenches a regime that leads to global climate change, and has literally poisoned our coastal waters. One wonders precisely what would have to happen in order to move opinion on this. The number of people who understand climate change is pitiful and the number who believe in it is equally pitiful and simultaneously declining. Here, too, the way ahead is unseen. We could mount a massive campaign to change public opinion, but the public is caught up in denialism and the Senate majority leader has said he no longer has the words "cap and trade" in his vocabulary. Even cap and trade, if it were in Fairy Land going to pass through congress, would not really be sufficient to stop catastrophic global climate change for two reasons: one is that there is no suitable energy substitute, meaning that policy would have to be marginal to allow for industrial growth; the other is that in absence of a replacement, it would be difficult to get the biggest consumer of energy and CO2 emitter, China, to go along with it. Some have suggested a Manhattan Project for green energy. The problem with this is that the Manhattan Project was to invent something no matter the cost. For our current situation, cost is the only consideration. Cap and trade would certainly help, and is a good idea, but it's not going to happen, and even if it did, it's not a whole solution.

Our legislative process is currently paralyzed. The senate rules cannot be changed. Well, they can, but they won't. For a procedural change, the party in power would have to want to pass the changes, but since they are in power they would rather pursue their own policy agenda. By the time the pendulum is swinging the other way, it becomes politically untenable. Imagine the democrats emerge from the 2010 midterm elections with a majority (which has about an 85% chance of happening), but has lost 4-5 seats. They then propose to change the rules so that they can, in the public's view, repudiate the recent election and ram through legislation. It's a nonstarter.

As for the public at large, they don't give two shits about what politicians say, what policy is about, what's happening in the news. They care about one thing: how high is the unemployment rate, how much are wages growing. Witness: Joe Barton, the GOP congressman who disgracefully apologized to the CEO of BP, has no credible electoral opposition. Neither does Joe Wilson, he of "YOU LIE!" fame. Sharon Angle, the republican senate candidate in Nevada who endorses dissolution of Social Security and the Department of Education, is leading Harry Reid by about 5 points. So too is Rand Paul handily ahead in his senate race, despite the fact that he proffers the frivolous (not to mention hateful) notion that the Civil Rights Act was unjust.

So we come to the paradox that "elections matter", but that policy decisions and personal conduct don't matter to those who participate in said elections. What's the solution? I don't know.

But perhaps nothing has affected me so acutely as Dianne Ravitch's statement that she no longer knows the way forward on education in America. That is, she has no suggestions, nothing that she would personally endorse. The administration is trying charter schools, which have been shown to produce no better students than regular ones. Old conservative staple, school vouchers, has been a manifest failure in Milwaukee, which instituted the policy over a decade ago. Our children aren't getting dumber, the data say, but the rest of the world is getting smarter. Merit based pay looks to be in the future of the current administration's education push, which is about as incoherent a position as I can fathom. Why in the world would you assess a teacher's current students versus other teacher's current students? Wouldn't you want to assess the teacher's past students' performance in other classes? Wouldn't that be a good measure? I don't know.

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