eugenejen

As a non russia speaker years ago, I walked into a russian bar in nyc with those movies on tvs behind the bar.

i was hooked and watch them many times. i started to learn russian from duolingo.

years later, i laughed when i heard the dialogue. i am also happy that those movies got me to learn another language.

Location: New York City, USA

Remote: Yes ( US timezone)

Willing to relocate: No

Technologies: Site Reliability Engineering, AWS Cloud, Devops, Data Pipeline, SOA, Postgres, MySQL, MongoDB, Java, Python, PHP, Ruby,

Resume: https://www.dropbox.com/s/rg86skx4lbpptyt/Eugene%20Jen%20202...

Email: [email protected]

Even you use DynamoDB, you still need to remember to have backupss. I have seen a recent mishap when devops by accident dropped the production tables and restoration requires high IOPs in order to restore it soon enough. The IOPs was not that high for usual use case. But when you wants to reduce MTTR, you need to increase the IOPs (which means $$$, too)

Eventually your dropping of the database is consistent. So back it up no matter what.

Strava also shows daily rank for the segment to public. That can be someone rides the same segment and checks the segement for the day.

charles simonyi 4.3b

https://en.wikipedia.org/wiki/Charles_Simonyi?wprov=sfti1

He was a legend in NYU CS in Courant. The annual movie party at his home was also interesting.

What I will say may be old. But that's what I feel everyday I use any piece of software/service. Since I did some startups before years ago. I may just say something only obvious to anyone who have tried them.

1. What kind of stuff do you feel pain?

2. Do all the existing solutions on the market solve that pain?

3. Can you come up something that may be better so users will put their time and money on your idea?

4. Fail, why?

5. Traction, why?

6. Repeat, continue, 1,2,3 [4|5] until you decide to leave the industry.

good memory for that book

of course underground power lines will be more expensive for the moment.

So will drones produce more values than the cost to invest on underground power lines?

https://en.wikipedia.org/wiki/Undergrounding

Advantages

    Less subject to damage from severe weather conditions (mainly lightning, wind and freezing)

    Reduced range of electromagnetic fields (EMF) emission, into the surrounding area. However depending on the depth of the underground cable, greater emf may be experienced.[2] The electric current in the cable conductor produces a magnetic field, but the closer grouping of underground power cables reduces the resultant external magnetic field and further magnetic shielding may be provided. See Electromagnetic radiation and health.

    Underground cables need a narrower surrounding strip of about 1–10 meters to install (up to 30 m for 400 kV cables during construction), whereas an overhead line requires a surrounding strip of about 20–200 meters wide to be kept permanently clear for safety, maintenance and repair.

    Underground cables pose no hazard to low flying aircraft or to wildlife.

    Much less subject to conductor theft, illegal connections,[3] sabotage, and damage from armed conflict.

    Burying utility lines makes room for more large trees on sidewalks,[4] which convey environmental benefits and increase property values [5]

Disadvantages:

    Undergrounding is more expensive, since the cost of burying cables at transmission voltages is several times greater than overhead power lines, and the life-cycle cost of an underground power cable is two to four times the cost of an overhead power line. Above ground lines cost around $10 per foot and underground lines cost in the range of $20 to $40 per foot.[6] In highly urbanized areas the cost of underground transmission can be 10-14 times as expensive as overhead.[7]

    Whereas finding and repairing overhead wire breaks can be accomplished in hours, underground repairs can take days or weeks,[8] and for this reason redundant lines are run.

    Underground cable locations are not always obvious, which can lead to unwary diggers damaging cables or being electrocuted.

    Operations are more difficult since the high reactive power of underground cables produces large charging currents and so makes voltage control more difficult.[citation needed]

    Whereas overhead lines can easily be uprated by modifying line clearances and power poles to carry more power, underground cables cannot be uprated and must be supplemented or replaced to increase capacity. Transmission and distribution companies generally future-proof underground lines by installing the highest-rated cables while being still cost-effective.

    Underground cables are more subject to damage by ground movement. The 2011 Christchurch earthquake in New Zealand caused damage to 360 kilometres (220 mi) of high voltage underground cables and subsequently cut power to large parts of Christchurch city, whereas only a few kilometres of overhead lines were damaged, largely due to pole foundations being compromised by liquefaction.

The advantages can in some cases outweigh the disadvantages of the higher investment cost, and more expensive maintenance and management.

and ancient roman foot is shorter

https://en.wikipedia.org/wiki/Ancient_Roman_units_of_measure...

Roman unit| English name | Equal to | Metric equivalent | Imperial equivalent

pes | (Roman) foot | 1 pes | 296 mm | 0.971 ft

but here there are some citation with much shorter legionnaires

http://history.stackexchange.com/questions/17072/average-hei...

" Imperial regulations, though not entirely unambiguous, suggest that the minimum height for new recruits was five Roman feet, seven inches (165 cm., 5'5") ... for the army as a whole a reasonable estimate of a soldier's average height is around 170 cm (5'7").

- Roth, Jonathan, and Jonathan P. Roth. The Logistics of the Roman Army at War: 264 BC-AD 235. Columbia studies in the classical tradition, Vol. 23. Brill, 1999.

"

i like that RDF to sync states from between local and remote. Nice to see similar idea that I had for while to have a client for AWS that sync states between AWS and local.

how about the possibility that the whole system's complexity outgrow our abilities to manage the system for the moment?

Several of my previous team members compiled a list of satire principles for application developments.

Need to flesh them out..

https://github.com/eugenejen/enterprisey_mantras

The only thing I don't like people to repeat about 1% owns 50% wealth is because that's just a mathematical truth from Pareto principle.

If 20% populations owns 80% resources. Just recursively applying Pareto principle. You see 0.8% populations owns 51.2% resources.

So we are in fact now efficiently using resources around the world to support 7 billions populations.

Of course this ignores our biological tendency of protecting our offspring. So we try to pass down what we have to our children by non productivity related measures (such as lenient estate tax, immigration restrictions). That's the real reasons for the 99% population feels 'unfair'.

If we are really fair, we should open first world border to all poor people around the world, right? But we don't. Same as people of wealth want to pass down their wealth to their children as much as possible. Or even try to starting a dynasty.

I went on 1999. Same interpretation as you do.

your parent's experiences just what PG pondered in 2008.

http://old.ycombinator.com/ideas.html

"2. Simplified browsing. There are a lot of cases where you'd trade some of the power of a web browser for greater simplicity. Grandparents and small children don't want the full web; they want to communicate and share pictures and look things up. What viable ideas lie undiscovered in the space between a digital photo frame and a computer running Firefox? If you built one now, who else would use it besides grandparents and small children? "

After 7 years, we know clearly now tablets/phones and mobile apps are the answers for that question for the present.

It is the same as NYU did in 70s. But now NYU merge NYU-Poly as its school of engineering.

I am always amazed at what criteria are used by school administrators to decide which departments to fund. It is very surprised to me as a foreigner born that U.S. doesn't need engineers from Ivy League....

The owner of the manual is also an interesting person.

He has been involving in Cilk, Akamai and Tokutek.

Nit picking: Redis, not Reddis.

Question: Do you use NodeJS cluster mode? Also Python has a very nice asynchronous task system such as Celery. Is there any equivalent software in NodeJS echo system?

Thanks for your appreciations. It is hard for me to explain those ideas as other do. But yes, I feel the current problems is we forget the demand side of economy.

It is a valid argument. If an oligarch desires to enslave the rest of human being for its own amusement. And the rest of human beings are willing to trade their precious time of lives with the oligarch by being enslaved.

But I feel if the oligarch overplays the enslavement, everyone can choose to commit suicide and having no pain anymore in their lives. Then the oligarch will have no one to play the game with.

So to keep the system working, the oligarch has to fulfill desires of people.

My main point is the most precious wealth for everyone is the time of their lives. And we all trade our time in lives with other people in either products or services. Progress in technologies has enabled us to enjoy growing purchase power of our time and enable us with more fulfillment of desires. But for the moment the whole economy system somewhat gets stuck and we are having problems to figure out what demand can we create to allow people to trade with. Even an oligarch has to trade wealth for desires.

Of course you should not. But in the end, you need other people who are willing to trade something for your investment.

Your investment would be valued 0 if no one wants or needs it. And valuation is how much they are willing to pay for it.

So in the end. I think creating jobs is just a mask for 'creating demand for new things for people have no new creating wealth'. Since total aggregation of time of lives of oligarchs and their families are much limited than total populations. So it is better to create demand for consumer market.

But of course, if one day, oligarchs have technology to enable them to live forever, they will have unlimited time to live and my argument won't sustain under that condition.

Well, I think you don't really know what a job is and what efficiency should be.

A job is demand that has to be fulfilled by another human being.

Demand comes from desires of human beings.

We as human beings, can have unlimited desires.

We as human beings, are limited by time of lives.

To create jobs is to create unlimited demand that need to be fulfilled with trading of time of another human beings.

Efficiency is to increase the purchase power of time. Then wealth of lives of human beings.

And wealth has to flow, otherwise prosperity won't appear.

And desires are limited by our imagination.

I think you are confused with his proposal. YC is looking for any company that can create demand that requires 1 millions workers to fulfill it.

It is not to create a huge company. It has nothing to do with eliminating jobs. It has nothing to do with provide basic living standard.

For example, if a new technology that allow us to regrow part of organs easily, but it requires living persons to carry the organs within their bodies until organs mature to be transplanted. Those people may have a job as 'organ incubator'.