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useful

407 karma · joined June 8, 2011

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useful··on Air Canada agents reveal overselling practices
If the plane was big enough and flights were booked more than a year in advance they would use actuary tables to be better at overselling flights.

I've worked for airlines so that they could do this, including Air Canada. Yield management is how airlines live and die.

useful··on Small World: The Tiny House Trend
Some of the most fun I've had was company team building at habitat for humanity. I basically learned how to frame, insulate, and finish a home in 2 days. I think most engineers love this stuff.
useful··on Instacart paying 80 cents an hour because worker received a large tip
Companies must now report credit card transactions to the IRS. It's possible for them to see % of cash vs credit and the amount topped in credit. It would not be hard for them to audit you, the worker, if you report lower cash tips than the average than your boss reports in his business.
useful··on JupyterLab
I write libraries in an ide and give examples in a notebook. Working in a cross platform environment is painful when gpu stuff doesn't work out of the box for everyone or when you need a way to poorly spread work across a compute cluster instead of using your local machine.

Actually, I hate python now because of this. I would kill for a proper tool for implementing requirements.txt like package.json(yarn) or pom.xml(maven) that worked on jupyter by defining a base image similar to docker. Pip+virtualenv just seems like a half-attempt

useful··on Google is buying Fossil’s smartwatch tech for $40M
the garmin 935 is basically my perfect smart watch, always on high contrast display with 2 weeks of battery life
useful··on What I Learned from Working 32 Hours a Week
For me it was protecting my people from bullshit drama. Making it so everyone could be effective and fulfilled in their job is a real thing. Most mid and junior level employees think it's bullshit, I did when I was young, but so much happens because people don't know what they want or someone doesn't have budget that is solved by asking people to work late, be on call, or work on weekends because no one said no.
useful··on [dead]
The whole facebook algorithm seems to be just principal component analysis for attention/engagement. In reality this is just creating echo chambers, tribes, and enabling groups to form around extremist ideals that are formed by algorithms.

I wish more people would call them out on this bullshit that divides and is enabled because politics demand society be engaged.

useful··on No More Entrepreneurial “Struggle Porn”
This would go farther and be less click-bait if it was titled "entrepreneurial struggle porn"

Testing to see what walls can move is part of the hard work. I think most people miss that fact that they have to experience less frictional paths to find success.

useful··on Will cable TV be invaded by commercials? (1981)
There are many online businesses that sell a product and make more off display ads next to those products. Marketing is crazy and the arbitrage from affiliates is the search for the price of your attention and conversion.
useful··on Microsoft is embracing Android as the mobile version of Windows
powershell is a great wrapper around bash in WSL
useful··on Machine Learning Confronts the Elephant in the Room
Each is harder:

* return a result

* return a list of results

* return a list of results with a confidence weightins

* return a list of results with multiple weightings (confidence and complexity)

how many if statements would you need to write for each if this was applied to a 3x3 grid like tic-tac-toe? how would you know you are correct?

useful··on $250 Trillion in Debt: The World’s Post-Lehman Legacy
I don't know how accurate this is or if the research is actually from Morgan Stanley. Russia is not in a crisis...

https://www.zerohedge.com/news/2018-08-30/which-emerging-mar...

useful··on Why Amazon is eating the world (2017)
They just need to do fulfillment as a service. It would be a huge business.
useful··on Clayton Christensen: Half of U.S. colleges will be bankrupt in 10 to 15 years
I'd love to see a teacher apply how modern influencers approach media. Gary Vaynerchuk is an extreme example. Create a lecture, put it online. Then create 5x10 second soundbites of the most meaningful parts. Then create meme+quotes to be shared. Then create some GIFs of you being animated with caption text. Then read all the comments and create a second round of media if people are resonating with any other pieces.

They would need to think through the recording setup and cant just put a wide angle on the powerpoint and call it a day.

useful··on Why U.S. Corporate Boards Don’t Include Workers
I'm pretty sure I can get a job if my company dies.

Workers don't have a good incentive to offset the human need to want more more in worker wages which may be counterproductive to the long term viability of a company to compete.

useful··on The Student Debt Problem Is Worse Than We Imagined
I hate to say this, but the jobs that most of us did to get in the door no longer exist. Most people create websites without any html or programming experience. You pick a CMS and buy a theme that has a few options. Gone are the days of needing to know php/css/javascript to advertise your business or start selling online.
useful··on An Airline Fee That Exists for No Apparent Reason
It's not value, airlines price on yield.
useful··on The Machine Fired Me
I've had this happen, myself and an employee who I had signed the termination paperwork for shared the same first name and someone put my name in instead of his. It was hell for at least a month as different automated systems kicked in and disabled my accounts, benefits, and payments.

Worse, the first notification email happened while I was presenting to the CEO and the HR contact in the meeting had noticed half way through that I had been fired. Queue jokes of "was the presentation that bad?". No one was able to stop the machine because no one really knew all the different processes or they weren't built to stop midway.

useful··on Beware the ‘Buyback Economy’
Weren't loans taken out as a way to avoid taxes pre-2018? You could have profits stored offshore tax-free and take a loan out in the US that generated money for your US operation without incurring taxes. These loans are very low interest rates and companies still don't have incentives to pay them off.
useful··on [dead]
I'd bet that countries that are prone to large scale weather devastation are more poor that nations with stable climates. Snow is clearly disruptive to infrastructure, but not as much as a hurricane or earthquake. With that in mind, we should be investing where we can engineer infrastructure that is resilient to the area it is built in so we don't spend our entire time rebuilding back to where we once were.
useful··on China Rolls Out 'Social Credit Score' System
Does anyone believe that this is only for citizens? It wouldn't be that hard to extend a score for the rest of the world. Your online profile could very well affect your travel.
useful··on Microsoft surges 8% after Morgan Stanley says it will reach $1T market cap
I believe they have on-premises hosted azure.
useful··on Using old laptop batteries to build homemade powerwalls
in middle school for a science project I converted non-rechargable batteries into rechargables. They all worked, they all held 80-90% of their original capacity.

They all leaked/exploded 6 months later while they were idle in flashlights and rc cars. The chemistry is different but that experience taught me to be more careful with 'outside spec' electronics.

useful··on A look at the J language: the fine line between genius and insanity (2012)
As someone who has written APL professionally, Numpy and Nd4j are much better choices to spend your time on. It might not be exactly the same thing, but thats the point. I only miss the linear algebra from APL and there are very awesome libraries that do better.
useful··on The World's Athletic Activity Mapped
they have some this in the labs https://labs.strava.com/clusterer/

You can search for yearly/weekly events.

useful··on Thousands of Delta passengers delayed by computer outage
the main host of delta is not sabre, it is deltamatic, a homebrew system that is run by delta. Most other airline systems like sabre communicate via teletype to one another
useful··on Is ‘grit’ overrated in explaining student success?
Isn't this just type 2 (slow) thinking? The "grit" required to focus on complex tasks is the same brain function as ability to suffer for long periods during exercise, problem solving, etc. Many books and science cover this subject, I can think of two, "Thinking, Fast and Slow" and "Iron War".
useful··on How to Hack an ADT Alarm System
On the first page of the class action, "ADT's wireless signals are unencrypted and unauthenticated, and can easily be intercepted and interfered with by unauthorized third parties"

I think rolling your own ZigBee security system is more safe (and cheaper).

useful··on Air Fares 101 – Why do fares change all the time?
I've only worked a little with the inventory back end so you can take what I say with a grain of salt. Different points of sale can have different yields and report different available seats in each class of service. So the price for a travel agent or a partner airline can be different. If a website detects you are searching for a holiday flight, and are back, they could switch the point of sale that they give you quotes from.
useful··on Ask HN: How can I remedy scatter brain and information overload?
I rock climb because when you are in fight or flight, you don't think about anything but that next hold. It lets me reset and turn off everything else for a short time. Participating in endurance sports gives me time to think to myself and prioritize/concentrate what I want to do during the rest of the day. A list of daily goals helps when I'm really overloaded.

I also don't watch TV and I've removed most infinite scroll apps from my phone.

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