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cltby

59 karma · joined August 10, 2020

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cltby··on California is chasing wealth that has feet
These are assertions, not arguments. Respond to points in the post you replied to. Be sure you understand them first.
cltby··on OpenAI Welcomes Sarah Friar (CFO) and Kevin Weil (CPO)
I would think you should admire her for taking a strong moral stand at the expense of the business. She added a number of grievance-oriented features to reduce "bigotry", "xenophobia", etc; thereby making the product less able to render reality; thereby hurting its value proposition; thereby losing users; thereby cratering the share price.
cltby··on Insecure vehicles should be banned, not security tools like the Flipper Zero
Criminality is congenital. Social interventions will not fix the kid. Neither for that matter will prison, but at least it will protect the rest of us from his increasingly violent depredations.
cltby··on Ask HN: How to get into quantitative trading?
> (and unless you are a crook, there is not)

What sort of shenanigans do you think profitable automated traders are engaged in?

cltby··on Amazon Time Sync Service now supports microsecond-accurate time
High frequency trading (measuring latency, inferring event ordering, etc). Since most crypto derivatives trading takes place at ap-northeast-1, it feels like AWS is orienting this release towards financial markets customers.
cltby··on FCC aims to reinstate net neutrality after us Democrats gain control of panel
Because we should have strong priors disfavoring regulation, and this is a stalking horse for yet more internet regulation.
cltby··on Lead poisoning causes more death, IQ loss than thought: study
Sorry, is your criticism that IQ proponents conflate point estimates with unknown population parameters? Is that what other IQ critics see as the core of the disagreement in this debate?
cltby··on Lead poisoning causes more death, IQ loss than thought: study
> otherwise identical cohorts.

You could do this stratification/matching for any IQ study. What's special about lead-IQ?

cltby··on Lead poisoning causes more death, IQ loss than thought: study
But these controls could be done for any IQ-related study. Is IQ-skepticism based on the belief that IQ researchers generally don't use controls? That lead-IQ researchers alone do this?
cltby··on Lead poisoning causes more death, IQ loss than thought: study
Question for any IQ skeptics here (e.g. "it just measures your ability to take tests" or "it just tells you how rich your parents are"): what's your response to studies like this? Is there anything that can be said about the effect of lead on cognitive function? Why might IQ be a good measure of lead-induced stupidification, but unreliable for literally anything else?
cltby··on Is the end of AIDS in sight?
Good comment. I concede if it's really ~$20/month it's a rounding error and an obvious policy win.
cltby··on Is the end of AIDS in sight?
There's wide, wide middle ground between celibacy and the debauched status quo.
cltby··on Is the end of AIDS in sight?
Rather depressing that we're subsidizing wanton sexual indulgence to the tune of $30k/year/person.
cltby··on New York, California Lose Firms Managing an Estimated $2T in Assets
Assuming:

* average 1% asset management fee (modal number if you poke around)

* 0% investment carry (hedge funds get away with charging this, but most asset managers don't)

* 9% effective tax rate (revenues disproportionately go to high earners)

gets you $1.8B lost tax revenues. The 0% carry assumption is very conservative, so the $1.8B is a lower bound. Even so, CA and NY collect about $400B annually. As a first order thing, this doesn't move the needle very much.

cltby··on DOJ sues SpaceX for discriminating against asylees and refugees in hiring
> The United States seeks fair consideration and back pay for asylees and refugees who were deterred or denied employment at SpaceX due to the alleged discrimination.

Does anybody know how such penalties are calculated? In "role-based damages," penalties would be limited to the total wages for the hiring reqs in question. This corresponds to the counterfactual where each of the roles would have been gone to an asylee. But I could also see the DOJ arguing that every "deterred" asylee is owed foregone wages. This "applicant-based damages" doesn't correspond to any serious counterfactual, but it has the virtue of being a much bigger number.

cltby··on In every reported mistaken arrest using facial recognition, person was Black
Because models are trained and validated on real data. Given a training set of crimes and corresponding surveillance footage, arrestee info is a (not noisy) label for “who is the guy in the movie.”
cltby··on In every reported mistaken arrest using facial recognition, person was Black
With a moment's thought, even the most emotive amongst us should see that the mugshots will be part of the training set--the photographed individuals are, after all, the class of true positives.
cltby··on In every reported mistaken arrest using facial recognition, person was Black
This doesn't rescue their claim. If the suggested class imbalance really exists in the training/test sets, the model will preferentially identify whites as criminals.
cltby··on In every reported mistaken arrest using facial recognition, person was Black
Are black faces overrepresented or underrepresented? According to AI researchers, we're faced with Schrodinger's Mugshot--there's simultaneously too many and too few!
cltby··on In every reported mistaken arrest using facial recognition, person was Black
> "We believe this results from factors that include the lack of Black faces in the algorithms' training data sets..." the researchers wrote in an op-ed for Scientific American.

> The research also demonstrated that Black people are overrepresented in databases of mugshots.

The sort of clear-headed thinking that makes the AI bias field as respected as it is.

cltby··on Free prison phone calls boost family ties, rehabilitation
If illegal aliens count for apportionment, why shouldn't prisoners?
cltby··on Former juvenile lifers talk about the meaning of second chances
Agreed. Just want to preempt any arguments about incarceration “wasting their potential.”
cltby··on Former juvenile lifers talk about the meaning of second chances
Yes, I would happily reconsider in this case.
cltby··on The ACLU Suddenly Reverses Its Support for Transparency
The transparency push would effectively veto race and gender teachings--the bet being that any teacher pushing leftist doctrines would be buried under parent complaints. Needless to say, this has been a very successful bet thus far! The ideas in question are evidently too repulsive to survive even the faintest sunlight.
cltby··on Switching to an N95 mask gives a 75x boost in Covid protection
HN is comprised of tech workers, who dramatically skew younger and vaccinated. These are people for whom covid is very much just the sniffles.
cltby··on Switching to an N95 mask gives a 75x boost in Covid protection
It seems to me rather more selfish and myopic to shut down all of society over one's personal fear of the sniffles.
cltby··on Pfizer’s Covid-19 Pill is 89% Effective in Phase 2/3 Study
> Check the actual stats

60 % of Republicans have received at least one dose [1], but only 51 % of blacks have done the same [2].

[1] https://www.theguardian.com/us-news/2021/dec/17/counties-vot...

[2] https://www.kff.org/coronavirus-covid-19/issue-brief/latest-...

cltby··on Advanced Uniflow Steam Engine
For those who don't know, Dan Gelbart also has a wonderful series on prototyping.

[1] https://www.youtube.com/playlist?list=PLSGA1wWSdWaTXNhz_YkoP...

cltby··on Tesla’s headquarters will move to Austin
> But assuming it isn't, there aren't many better places to go.

Washington state is a good alternative. It has all of California’s grievance politics and collectivism but with none of the tax burden.

cltby··on Women are nearly half of new gun buyers, study finds
> There is no scenario in which any citizen with a gun in any country defeats their government

Imagine writing this not one month after the Taliban wins its war against the US.

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