HNHacker News
TopNewBestAskShowJobs

rflrob

4,217 karma · joined September 1, 2008

submissionscomments
rflrob··on Senate Stock Watcher
The question is, what if they want to build an elevator for their car at their vacation home in Aspen and need to pull out some cash, and just happen to do so immediately prior to a recession they received a briefing about? Surely “give me cash” and “invest some cash” are acceptable communication to an investment manager, but still could abuse the MNPI.
rflrob··on SpaceX bans Zoom over privacy concerns
The rumor that I've heard is that the "security and privacy concerns" are that Boeing has somehow gotten access to their Zoom. I don't know what that means, exactly, but it's at least somewhat more rational than being concerned that facebook is siphoning up the data.
rflrob··on How the CDC’s restrictive testing guidelines hid the coronavirus epidemic
Congressional hearings are one big way to hold the executive branch publicly accountable. Then, there’s the election.

My sense is that a lot of the bad decisions don’t necessarily rise to the level of negligence, so civil/criminal penalties are unlikely.

rflrob··on FDA just cleared a $20 Covid-19 antibody test
I assume if you test positive for the antibody and N days later test negative for the virus, you’d be in the clear to be whitelisted.
rflrob··on Google tracking a bike ride past a burglarized home made the rider a suspect
Though one’s right to a public defender only applies once you’ve been charged, right? In TFA, the guy being investigated was only the subject of a warrant.
rflrob··on Python dicts are now ordered
I think the argument is that if you run code with f-strings and walruses on Python 3.5, the code will break noisily. Whereas if your code implicitly relies on ordered dicts, it could break silently. Syntax errors rarely cause subtle, hard to track bugs.
rflrob··on Starliner faced “catastrophic” failure before software bug found
Well, their CEO also doesn’t go on podcasts and smoke pot. Not that I think that’s necessarily a better or worse sign that SpaceX is or is not safe than a CEO drinking moderately in public, but we are prudish about these things in the States.
rflrob··on Reviving Sandstorm
It’s not clear to me the extent to which developers should assume people will be coming from HN and have some background on their project for the uninitiated. This post is almost perfectly devoid of any hooks that might give people a hint of what it is, but on the other hand, for a “not dead yet” post, probably the people who will be most excited do in fact know what it is.
rflrob··on Students defeat new 'Barnacle' parking clamp, skip fines and get free internet
I assume it was a comment on the reddit thread about the barnacle.
rflrob··on Health and Wealth in the Roman Empire (2019)
Don’t forget engineering. Which, to be fair, they used in large part for war. Roads are great for getting your army to Gaul to fight. Concrete piers to sail your army where the roads don’t go.
rflrob··on Deep Learning Breakthrough Made by Rice University Scientists
I see what you did there...
rflrob··on A genomic predictor of lifespan in vertebrates
I wonder whether they also looked at body size. Larger species tend to live longer, so it could just be that their regions are just associated with growth.
rflrob··on Why scientists need to be better at data visualization
While I absolutely agree that scientists need more formal training in data visualization, the claim that "few scientists take the same amount of care with visuals as they do with generating data or writing about it" doesn't ring true to me about the scientists in my field (genetics/genomics). There is a widespread recognition that effective figures are the strongest way to communicate your message, the question is what is the the best way to create those effective figures. Part of the problem is that as datasets get bigger, it's rarely sustainable to put a lot of care into each and every version of a plot, but automating creation of figures is really hard.

If I were going to start designing a course in creating scientific figures, I think I'd have a roughly even split between the psychophysics of visual perception (e.g. distinguishing between similar quantities of lengths/angles/colors/etc; designing for color-blind readers; ) and hands-on work in a real programming environment turning data to figures.

rflrob··on T-Mobile demand Lemonade to stop using the color magenta
A comment elsewhere here links to a color comparison. Looking at them, I doubt I could tell you which one is T-Mobile and which is Lemonade with confidence greater than chance.
rflrob··on 40k-year-old bracelet made by extinct human species found (2015)
First off, the Denisovan people were named after the Denisova cave, not the other way around. Second, until very recently (in the last year or so) we did not have any intact bones confirmed to be Denisovan that are large enough to say anything about their morphology (the recent classification of some jaw bones as Denisovan is based on protein sequences, which are more stable than DNA). I’m skeptical of this article given the facts that I know that they got wrong and the lack of any evidence describing why the particular piece couldn’t have been made by some other Homo.
rflrob··on A typo that almost crashed a plane
Would a simple solution be to "lie" about the runway direction by a few degrees: instead of runways 10 and 28, bump it up to 11 and 29 (or down if that's a smaller lie). DFW is apparently comfortable having numbers slightly off from the true direction, since it has 5 parallel runways, 17L, 17C, 17R, 18L, and 18R, all of which are at 175.4º.
rflrob··on Worms fail to thrive in soil containing microplastics: study
0.1% of 1000 lbs is 1 pound, but that’s still the equivalent of ~10 empty 2L bottles.
rflrob··on Hedonometer
I think the fact that two of the top ~10 happiest days in 2018 were attributed to a Korean pop star's birthday is excellent evidence that people of twitter are not, in fact, good samples of the people of the US.
rflrob··on We may not be running out of helium after all (2015)
But it is inarguable that there is a finite and ever decreasing amount of {helium,petroleum} in the earth. While we may not now be at peak [insert resource], and may not be in your lifetime or mine, such a point must exist and I would bet that the children of today’s newborns will be alive to grapple with the consequences of it.
rflrob··on Japan approves first human-animal embryo experiments
But do rats (or other non-human animals) with human organs deserve the same rights as humans? I don't think that the human pancreas is the source of our innate "human-ness" that gives us distinct moral standing from non-human animals. You can certainly wonder whether there is any such thing that gives humans a special standing, but if you also eat pork, you have a tricky row to hoe in that argument.
rflrob··on How much are professors paid?
Anecdotally based on some skimming of the California version of the salary database, there seems to be greater variation between fields than between universities. My wife is in the humanities, and the mid-career salaries of the professors at UCs in her field seem to be about the starting range for UC professors in mine (biology).

If you are currently tenure track at an R1, I would expect that most of your other offers were from a similar tier. So while there may not be a huge difference in salaries between the top-ranked and the 30th ranked school in your discipline, there likely is one between the 30th ranked and the 300th or 1,000th. I'd be curious to see the analysis in the linked article run on the California data, where there are multiple top-tier research universities as well an extensive CSU system. Maybe I'm even the person to do that analysis...

rflrob··on California bill to add more housing in single-family neighborhoods blocked
http://findyourrep.legislature.ca.gov/

I believe the conventional wisdom is that legislators' offices pay more attention to calls than letters, and either of those are stronger signals to them than emails.

rflrob··on The San Francisco plague epidemic of 1900
I haven’t read the book, but maybe Chinatown was a source of cheap domestic labor and services?
rflrob··on A new kind of metasurface uses the sun to clear foggy screens
Happens to me often on cold dewy mornings. Plenty of moisture from the overnight air, and it takes a while for the defogger to heat up, during which time it sometimes feels as if it’s actively refogging my windshield.
rflrob··on Buy Yourself a Latte
I assume that the Suze Ormans of the world would tell you to be not just pennywise but poundwise as well. The $5 latte is emblematic: once you start thinking about that $100 monthly expense, you sit and look at your $90 cable bill or your $200 car lease and think whether there are ways to cut back on that as well. The value of cutting out lattes is that it's easy to ask, on a regular basis, "is this making me $5 worth of happy?", whereas a big car payment you can more easily justify as "I need it to get where I'm going", even though a cheaper vehicle could do just as well.

I agree it's more efficient to start with the big expenses and work your way down, but it's sometimes easier, especially if you're just starting to turn your finances around, to start with the little stuff and build your way up.

rflrob··on Ask HN: Who wants to be hired? (April 2019)
Location: San Francisco Bay Area (strongly prefer SF, South SF, or East Bay) Remote: Yes Willing to relocate: No Technologies: * Python (numpy/scipy/pandas/matplotlib) * Snakemake * Unix/Linux shell (and basic server administration) * Various levels of experience in other languages (R, SQL, C/C++, Java, Matlab) * Next-gen sequencing data generation and analysis

Resume: https://drive.google.com/file/d/1q5HRmK6xTKOs5nvOMPht7sSdv43... Email: pcombs@gmail.com

I'm a biology PhD with significant wet-lab experience looking for Bioinformatics/Computational biologist position. Looking for someone to work with your sequencing team to do first-pass (and more!) analysis? Need to beef up the reproducibility of your data analysis pipeline and make it distributed? Drop me a line!

rflrob··on Burger King is introducing a vegetarian patty from the start-up Impossible Foods
> I never understood why one would want to make a veggie burger taste like meat.

Because most people find meat delicious and it fills a particular cultural niche in the United States in particular. Veggie burgers are tasty too, but if you are craving a beef burger, it's not the same thing, much like tofu is not a satisfying substitute for chicken, even if it's delicious when prepared as tofu.

You can try to change the tastes of millions or you can just make a less environmentally damaging substitute.

rflrob··on Burger King is introducing a vegetarian patty from the start-up Impossible Foods
So the major thing that Impossible Foods puts in that "makes it taste like meat" is leghemoglobin, which is an ortholog of regular hemoglobin from cows blood, though in this case it was isolated from a legume. The argument, as I've heard it, is that since it's an oxygen binding molecule, it catalyzes all kinds of tasty reactions when you brown it.

They do list all their ingredients [0], and you can take a look and see whether there's anything objectionable to you. If you're going by the "5 ingredients or fewer" heuristic, then it doesn't qualify. Avoiding "chemicals" is impossible, since everything is made out of chemicals, and just limiting to naturally occurring chemicals is no better of a guideline because cyanide, asbestos, and arsenic are all "natural".

As a sibling comment notes, it's likely not significantly better or worse for you than a standard beef whopper

[0] https://faq.impossiblefoods.com/hc/en-us/articles/3600189374...

rflrob··on Tips and tricks to write LaTeX papers in with figures generated in Python
But then how will people know how smart I am for using LaTeX? ;)
rflrob··on Why the Amazon River Can't Be Crossed by Bridge (2018)
But the title “if you want to cross the Amazon by bridge, you’ll first need to build one” isn’t nearly as snappy.
← PreviousPage 4 of 26Next →