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bdavis__

348 karma · joined October 7, 2018

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bdavis__··on Ask HN: Why don't people learning to drive use simulators?
A driving simulator will set you back around $150K. There are several vendors in the space. This will include a "cab" with steering wheel, brakes, etc. and a projected display system. Some go 200+ degrees FOV.

And the "feel" on the steering wheel is also there.

bdavis__··on Elizabeth Holmes is sentenced to more than 11 years for fraud
It will be far less regimented than lets say, joining the army. Up at 5AM, stand for the count. Report to prison job for a couple of hours a day. 5pm, in your cell, standing for the count. Lights out at 10pm. You can exercise, go to the library, watch TV, play cards, whatever is available during most of the day.
bdavis__··on Elizabeth Holmes is sentenced to more than 11 years for fraud
Fraud == Fraud Medical or otherwise. Hold everyone to the same standards.
bdavis__··on Latam Airlines Airbus A320neo hits fire engine on runway during take-off
Aviation safety is incredible. "Events" happen. But all the people got out.

This works due to regulation, training, and an honest evaluation of every incident that forces changes in the system.

bdavis__··on China's weapons acquisition cycle 5-6x faster than the United States
The USG / DOD is a terrible customer. They want to control every thing; from suppliers to acceptance. They really don't care about what something costs, it is far more important to ensure the vendors are not making too much profit.

To move fast, you have to be willing to break things. When you go "agile" in software, you write a lot of crap that has to be thrown away. Same with weapons development, if you want to go fast and try ideas then some of them will not work. Will Not Work. That is intolerable to the procurement organization, because spending money on something that does not work is also known as "corruption".

Risk / Reward has to be changed by society. A war will do that.

bdavis__··on Meta Is Preparing to Notify Employees of Large-Scale Layoffs This Week
There is only room for Elon in the management suite.
bdavis__··on Ask HN: How to get started with real-time Linux?
The #4 reference (gallmeister) is getting dated. The tarball of example source is still out there on the web.

At the practical level, I would suggest the Redhat Realtime linux tuning guide. It covers practical ways to identify and remove latency and jitter from your system.

My experience with the RH realtime kernel is 120 hz is usable. 60 hz can be very good. Of course, YMMV....

bdavis__··on Are You a DevOps Engineer If You Aren’t Writing Code?
s/Angular/Apache/

LAMP was a term from the 1990's.

bdavis__··on Empty offices are becoming apartments in Texas’s big cities
I live in a 12 story office building, built in 1932. When the interior was converted to living space, 2 of the elevator shafts were re-purposed to provide additional floor space. They simply but in a "floor" where once was a "hole".

that extra space is a closet in my specific case.

bdavis__··on Ask HN: Anyone else feel trapped in FANG? How did you get out?
i think it is under-exaggerated. maybe 99.995%.
bdavis__··on FBI search of Mar-a-Lago raises critical national security questions
If they were de-classified, the markings on the document would have been changed. The "Top Secret- SCI" markings would have been crossed out, and a "declassified by: ____" notation would have been made so that it could be traced. Confidential and Secret are not tracked every time they are placed in or removed from storage, but Top Secret should be.

There will be a custodian of these documents, and they will have a record of someone removing these from a storage container, but not returning them.

The custodian, at a minimum, would be aware of the changing classification of these documents. The authority that originally classified the material would also be aware, because the fact this information is no longer controlled is very important to the work they do.

bdavis__··on Rust is actually portable
"MacBook, Rust, Bazel and containers." what is the essence of what you are trying to accomplish. focus on that.
bdavis__··on Wasting time in tech interviews
"totally useless". maybe just "useless". my experience is you learned a lot about the problem domain and the system constraints during the creation of those documents. you didn't learn enough to solve the problem, but it got you started.
bdavis__··on The Hard Disk That Changed the World (2006)
"changed the world". a couple of 5MB drives were important, but delivering 4 300MB drives to every credit union, bank, and medium sized business is what changed the world.
bdavis__··on The Hard Disk That Changed the World (2006)
Nope. CDC 300MB Removable platters SMD.

http://archive.computerhistory.org/resources/access/text/201...

More storage than you thought possible. And it was widely used for about 10 years.

bdavis__··on US moves closer to recalling Tesla’s self-driving software
No, it is not. You sure don't do it in aerospace. Each change is verified, the entire system is validated prior to a release.
bdavis__··on Ask HN: Who is hiring? (June 2022)
and some require a TS !! funny that wasn't mentioned...
bdavis__··on Ask HN: Have you experienced decline in problem-solving skills? How to improve?
"- Maybe I've actually always been dumb and am only now realizing it!"

== wisdom

bdavis__··on Ask HN: Burnt-out, directionless but want to turn it around
i like your logic.

someone should ask a few HN questions instead of leetcode. "who is dang"? "did you read the latest from the lego sorter guy ?"

bdavis__··on Master’s Degree in Computer Science
Did mine at 50. Two things:

#1. The fundamentals are the same, but a lot of things have changed in the past 30 years. The coursework, somewhat, brings you closer to up-to-date.

#2. Non-FAANG. Looking to be a director or a tech fellow? No formal education during your career is a bad signal. Of course there are exceptions, but it is expected that you have invested in yourself (MBA also meets this requirement).

My personal achievements:

#1. Greatly improved my writing skills.

#2. Understand deeply and can communicate technical concepts that previously I dealt with on the "gut feel" level.

#3. Able to identify ignorance and stupidity in my leadership directly, where previously I lacked enough context to be sure of them being wrong.

bdavis__··on NASA chief says cost-plus contracts are a “plague” on the space agency
overruns on a cost-plus contract are the procuring agencies fault, not the contractor. there is a thing called "oversight". cost plus contracts have to be managed. if they are not making progress, you stop paying them. "cost plus" means "agile". if you knew all the requirements (and they were viable), it would be firm fixed price.
bdavis__··on I got a computer science degree in 3 months for less than $5000 (2020)
A lot of CS programs are ABET accredited.

CMU and Stanford don't need anyone or any organization to tell the world they do a good job educating CS students. Not so clear if the CS dept is at the Small Town Liberal Arts College and Seminary.

But the other 4,999 schools CS programs, like the one being discussed at WGU, the source of the accreditation is a valuable signal.

bdavis__··on I got a computer science degree in 3 months for less than $5000 (2020)
How about the gold standard for engineering and computer science(s), a program accredited by ABET?

Is WGU?

bdavis__··on It is physically impossible to exceed the weight limit for a Small Flat Rate Box
all airlines have something like this. it used to be called "counter to counter"; drop off and pick it up at the airport.

my story, about 1988. we had a system in Omaha with a broken power supply (it was big, say 6U, custom voltages). there was a spare in Rapid City, and downtime was charged by the hour.

no problem, took the spare in a box to the airport. they told us it was too big for counter to counter; but a ticket could be purchased and it would be put on the plane. No, problem.

"Give me a coach ticket to Omaha." "Sorry sir, those are all sold. We do have a first class ticket available." "In that case, OK"

The box went in the cargo hold.

bdavis__··on Wide-Band WebSDR
BBC 4 on Long Wave. wonderful signal on 198 khz.
bdavis__··on Learning all VSCode shortcuts evolved my developing habits (2020)
being a command line person, i always wonder about these IDE "shortcuts".

to be blunt, my productivity is limited by my speed of thought, not by how i manipulate source in a program.

my use of vi is about 10 commands; whenever something sophisticated has to be done i look it up.

if i need to see a declaration, i go back to the command line, run a quick "find ./ -name... |xargs grep and i interpret the results. maybe the results have to be passed through grep, no big deal.

in almost all cases, i spend a lot more time looking at the code and thinking about it than i do searching or typing. a lot more time thinking.

so, my comment / discussion item is "what do you do in the IDE that makes all these shortcuts so valuable?"

bdavis__··on Elon Musk makes $43B unsolicited bid to take Twitter private
not with building.
bdavis__··on Elon Musk makes $43B unsolicited bid to take Twitter private
The main draw for Truth Social is not posting on it. If he was "truthing" 50 times a day, they would be doing a lot better. I suspect some negotiation is going on. The main content creator wants a bigger slice of the business.
bdavis__··on Why is selling software so weird?
by the sloc.
bdavis__··on FAANG promo committees are killing Kubernetes: A Short Thread
or from 12 hours to 30 minutes. changes everything.
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