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skylanh

327 karma · joined December 6, 2019

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skylanh··on Miscalculation at every level left U.S. unequipped to fight coronavirus
I initially started following the WHO, CDC, and a few other health related agency Facebook pages when this pandemic actually started to take off in North America (mid-March).

I had to stop following the WHO and CDC Facebook pages because the value of information they were posting was so poor, I was IMHO better of not having access to it.

skylanh··on Amazon to suspend delivery service that competes with UPS, FedEx
They've commited to ordering 100k electric vans from Rivian:

"Amazon CEO Jeff Bezos said the company has placed an order for 100,000 electric delivery vans from Michigan-based startup Rivian. The announcement came during an event on Thursday in Washington, DC where Bezos unveiled Amazon’s sweeping plan to tackle climate change."

https://www.theverge.com/2019/9/19/20873947/amazon-electric-...

This was part of their investment into Rivian:

"In February 2019, Amazon announced it would be leading an investment round of $700 million into Rivian." https://en.wikipedia.org/wiki/Rivian

skylanh··on PostgreSQL is the worlds’ best database
Situations where you have enterprise setups have users measured in the 10s of thousands.

There will be existing tooling around ACL management (typically AD). User Access Management groups, geo-separated local account manager, multiple help-desks to allow for disaster plans (pandemics, fires, localized grid failures).

Access can be as simple as:

- my application will use a system-account, and we'll manage access

- my application will pass user credentials (based on AD), these are the groups (based on AD) that have read/write/delete access; regional team leaders will request access using existing UAM, regional managers will authorize requests, your existing tooling will process those requests as you are the designated authority over those groups

Changing this requires either exceptional levels of observable returns on effort, or extreme will-power and political power.

During evaluation of MS SQL / PostgreSQL / whatever, fitting into existing UAM will be a requirement.

skylanh··on Hello, LineageOS 17.1
https://github.com/dan-v/rattlesnakeos-stack

It's based on using an AWS instance; build times are in the order of:

"1.75 hours on a c5.4xlarge. 5 hours when Chromium is also needed"

Also, https://github.com/dan-v/rattlesnakeos-stack#costs

skylanh··on ‘Accuracy nudge’ could curtail Covid-19 misinformation online
Because that's too complicated a message to send.

At a broad, high level, the message has to be simple and direct: stop (modes of) transmission (touching eyes, washing hands, being around people), quarantine yourself, self-isolate yourself, just stop!

Those simple and direct actions cover everything they need. Maybe that's pareto's principle.

Getting into vitamins, whatever, minor optimizations, how do you propose that works when literally everyone understands "America has an obesity problem--stop eating so much", and yet there America is.

skylanh··on Show HN: Easily move between cloud storage (S3, Backblaze, OneDrive, etc.)
(And give your data to someone else)

Ex-nay on that from me.

Spinning up an instance, configuring rclone, and running rclone for a few hours is quite fine by me.

skylanh··on Göttingen researchers identify existing drug with potential to treat Covid-19
I was prescribed chloroquine from a doctor specializing in travel medicine. I received "TEVA-CHLOROQUINE 250MG TABLET"[0] from my local pharmacy. That's chloroquine phosphate.

Note: it had very odd side-affects: sweats, mild fever, nightmares, nausea.

0 - https://www.tevacanada.com/en/canada/our-products/generic-me...

skylanh··on Ask HN: How to Take Good Notes?
This sounds like the Cornell note taking method
skylanh··on How KitchenAid and Le Creuset Took over Kitchens
The enamel in my mother's Le Creuset pot is over 40 years old at this point and still a daily use. That's n=1, but I think it still applies over their product line.

I bought a pot thinking it was similar (it wasn't), the difference in food-stuff adhesion is … palatable.

skylanh··on Spreadsheet Horror Stories
As someone that spent many countable (billable) hours doing Excel audits--yes there is.

You build them yourself.

The fallacy that you're bringing to Excel is pretending that it's a "all-and-be-all" in a package.

It's a tool with an embedded programming environment. Much like you'd take a basic Python install, and add on additional tools, the same applies to Excel.

The embedded programming language (VBA) is a fantastic language--it has absolutely no libraries out of the box which makes it a poor development /environment/.

To directly address your question:

- include a "version" cell on a "Config" worksheet (optionally include values for "audited by", "audited date", "audit version", "audit type", note this could be a multirow, so you could actually specify "full" audits, and mini audits)

- build a function that maps all formulas to an "Audit" worksheet

- build a function to export to CSV with the date and version tagged

- build a function to export all code modules to text files

- create whatever release-versioning you want around this: zip of exports + "deployment" XLS, GIT repo with tagged version and exports and a binary blob of the XLS, etc, etc.

(Edit: workbook vs worksheet; each tab in a workbook is a worksheet.)

skylanh··on Users protest over 'creepy' Facebook update (2006)
I don't recall that I did this, but I remember a very smart ER doctor I used to work with running some basic statistics against Facebook in 2006-2008 which identified singles by gender and age categories.

The year may be wrong, but based on what I was studying at the time, and my relationship status, that's probably the timeframe.

skylanh··on Testing a Chinese x86 CPU: A Deep Dive into Zen-Based Hygon Dhyana Processors
The top Chinese based supercomputer requires twice the power and 6 times the number of cores.

The next requires three times the power and 3 times the cores to produce 60% of the number two supercomputer.

Seems like it's a case of "increase operational friction".

skylanh··on Estimated car cost as a predictor of driver yielding behaviors for pedestrians
I looked over the study to determine if there was a criteria for "yield" vs "non-yielding".

I think based on the study write-up under section "2.2. Pedestrian crossing", that yielding was based on:

- car in nearest lane is 200 yards away

- pedestrian placed one foot into crosswalk

- pedestrian attempted to make eye contact with driver

- driver reduces speed -> threshold for "safe to attempt"

- driver yields or does not -> fits criteria for "yields"

It isn't clear if they considered a failure by the driver to invigilate the entire crossing as a "failure to yield"; e.g. in my district, if a pedestrian is present in the cross walk at any part of the road, I cannot proceed full-stop, and that would be a "failure to yield" under my road laws act.

After thinking about this study, and attempting to not make myself look like a fool if my original issue was addressed, I noted a few more deficiencies in this study:

- road structure (other than mid-block crossing, and 35MPH; e.g. number of houses, other entry ways, number of business, two lanes or four lanes; traffic calming measures)

- road use (isolated neighborhood collector; retail zone; between two high-congestion areas; etc)

- volume of crossings by non-study participants

- recency of the crossing

- existing use of the crossing (inter-neighborhood? inter-shopping centre? school to park?)

- driver perceived age of pedestrians and pedestrian capability (infirm, underage, active)

This all leads into:

- driver awareness of existing pedestrian crossing

- driver familiarity with pedestrians at that crossing

- driver intention with the road

- brand new and underused crossing? old crossing with very low non-study volume?

- is 4x30 = 120 crossings at road 1 and road 2 high or low for that area?

I don't feel this study is useful in isolation, and I'd be irritated if someone used it as a basis for point-making.

skylanh··on Spain builds submarine 70 tons too heavy due to wrong decimal (2013)
I'd also like to point out this is also a situation where several workplace factors can cause issues:

- my job=>my problems

- tight deadlines, crunch, and not enough time to investigate issues outside of your domain

- rigid purview domains--"you aren't authorized to look at that", "why are you wasting time / company resources looking at that?"

- culture of elitism--"of course it's correct; I did it."

Just some food for thought.

skylanh··on A Desperate Plea for a Free Software Alternative to Aspera (2018)
Version 6.3.3 from the Library of Congress - https://www.loc.gov/preservation/digital/formats/digformatsp...

Writeup on zip file Appnotes: https://entropymine.wordpress.com/2019/08/22/survey-of-zip-a...

Actual PKWare AppNotes: https://support.pkware.com/display/PKZIP/Application+Note+Ar...

Section 4.4.5 is "compression method"

skylanh··on Samsung TVs May Upload Screenshots for Automatic Content Recognition
There are recent updates from LineageOS for the S5 (multiple variants).

https://download.lineageos.org/

skylanh··on United orders 50 new Airbus long-range jets to replace Boeing 757s
My memory is that Bombardier expanded into territory they had never been in; outsourced to their partners a lot of details; had significant issues during major-part integration; and faced huge timeline crunches and overruns.

They also missed completion and delivery of air-frames on contracts with regional airlines. And other signs of "we messed up" on a project.

There seemed to be lots of complaints at the time (on Canadian forums and news-stories) about how the family that owns Bombardier would have been fired as C-levels in a public company based on this fiasco.

OTOH, I haven't heard anything about this in a long time.

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