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nkoren

10,941 karma · joined November 30, 2011

https://twitter.com/nkoren CEO & Co-founder: http://www.podaris.com/ Co-founder: http://www.futurescaper.com/
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nkoren··on Vintage Photographs of People with Their Commodore 64 (2019)
Pure nostalgia! I was seven when my father got me one. Apparently I declared in a dramatic voice that "We have now entered... THE COMPUTER AGE!!!". Honestly, the things one could do with that machine were intoxicating.
nkoren··on The Future is Vast: Long-term perspective on humanitys past, present and future
Still not the Great Filter, which by definition is the explanation for why there's so little evidence of intelligent life in this universe.
nkoren··on Ask HN: Who is hiring? (February 2022)
Podaris | London, UK / REMOTE | Full time | Full-stack software engineer | https://careers.podaris.com/ Podaris is a fast-growing software startup in the transport and urban planning sector, aiming to change the way the world plans its cities. Our mission is to bring together all stakeholders in the urban development process -- planners, engineers, transport technology vendors, public interest groups, property developers, and more -- in a shared modelling environment, where ideas can be iterated in a rapid and agile fashion. We have created a web-based collaborative transport planning platform which incorporates aspects of GIS, CAD, transport simulation, and more.

The platform is being used by customers around the world, from large-multinational private campus owners, to global consultancies, to local authorities and transport operators. They use Podaris for everything from bus network redesigns, to the planning of new innovative multi-billion pound fixed-infrastructure schemes.

Our small team makes for an inclusive, interdisciplinary, and intellectually stimulating environment. We value diversity and welcome candidates from non-traditional backgrounds. The UK/US-based team has been working remotely since before the pandemic.

We’re looking for a fullstack engineer to join our growing team. You'll be able to make a big impact, joining a small but very enthusiastic team. Our platform is centred around a feature-rich collaborative single-page application, that is built using technologies such as Openlayers, Node.js, MongoDB, and Meteor.js. Our stack includes a number of programming languages and frameworks used throughout different services, and your experience with those is less important than your expertise with modern Javascript.

Apply here: https://careers.podaris.com/fullstack-engineer/en

nkoren··on Covid-19 may have killed nearly 3M in India, far more than official counts show
Unfortunately it's too easy to believe this. During the height of the delta wave, my old classmates from India were frantically sharing tips on our alumnae Whatsapp group on how to source ventilators for family members. Everybody had a parent, aunt, or uncle in the ICU. Many didn't make it. One classmate reported that in the space of a 2-week period, 10 members of his extended family had died. This is all anecdotal, but seems indicative of a situation that goes far far FAR beyond the official statistics.
nkoren··on Ask HN: Who is hiring? (January 2022)
Podaris | London, UK / REMOTE | Full time | Full-stack software engineer | https://careers.podaris.com/

Podaris is a fast-growing software startup in the transport and urban planning sector, aiming to change the way the world plans its cities. Our mission is to bring together all stakeholders in the urban development process -- planners, engineers, transport technology vendors, public interest groups, property developers, and more -- in a shared modelling environment, where ideas can be iterated in a rapid and agile fashion. We have created a web-based collaborative transport planning platform which incorporates aspects of GIS, CAD, transport simulation, and more.

The platform is being used by customers around the world, from large-multinational private campus owners, to global consultancies, to local authorities and transport operators. They use Podaris for everything from bus network redesigns, to the planning of new innovative multi-billion pound fixed-infrastructure schemes.

Our small team makes for an inclusive, interdisciplinary, and intellectually stimulating environment. We value diversity and welcome candidates from non-traditional backgrounds. The UK/US-based team has been working remotely since before the pandemic.

We’re looking for a fullstack engineer to join our growing team. You'll be able to make a big impact, joining a small but very enthusiastic team. Our platform is centred around a feature-rich collaborative single-page application, that is built using technologies such as Openlayers, Node.js, MongoDB, and Meteor.js. Our stack includes a number of programming languages and frameworks used throughout different services, and your experience with those is less important than your expertise with modern Javascript.

Apply here: https://careers.podaris.com/fullstack-engineer/en

nkoren··on In-orbit demonstration of an iodine electric propulsion system
Stories like this make Charlie Stross' "A Tall Tale" seem that much more believable: https://www.tor.com/2012/07/20/a-tall-tail/
nkoren··on Individuals Matter
Yep, you're exhibiting precisely that kind of bias. I've known a variety of addicts and there's absolutely no statement one could make about them with 99% certainty that it will apply to a given individual.

I don't mean that one should be naive about things. You might correctly observe that a high percentage of Oxycontin addicts exhibit behaviour X, and therefor you might want to keep a wary eye out for that behaviour when dealing with an individual Oxycontin addict. Of course that way lies confirmation bias, which one must also guard against. But it's still better than saying that because most Oxy addicts exhibit trait X, this individual addict will necessarily exhibit trait X. That's worse than confirmation bias becuause it's pre-confirmation bias. You're treating statistics about a group as evidence about an individual -- and that's wrong.

nkoren··on Individuals Matter
I think the worst of all cognitive biases which humans suffer from is the belief that observations about collectives can be usefully applied to individuals. How much faulty thinking, from racism and sexism onwards, stems from this simple category error?
nkoren··on Ask HN: Who is hiring? (November 2021)
Podaris | London, UK / REMOTE | Full time | https://www.podaris.com/

Podaris is changing the way the world plans its cities. Our aim is to bring together all stakeholders in the urban development process -- planners, engineers, transport technology vendors, public interest groups, property developers, and more -- in a shared modelling environment, where ideas can be iterated more rapidly, accurately, and transparently. We have created an web-based collaborative modelling tool which incorporates aspects of GIS, BIM, transport simulation, and more. It is already being used by customers around the world.

We're a small and friendly (but extremely driven) team, and have been working remotely since before the pandemic. Come join us!

Contact: jobs@podaris.com

----------

Role: Full-stack engineer

Job Description: We’re looking for a full-stack engineer to join our growing team. You'll be able to make a big impact, joining a small but very enthusiastic team. For this role, you'll primarily focus on mathematical problems: computational geometry, parametric constraint solvers, network routing optimisation, etc -- problems that come up in the course of modeling physical transport infrastructure, as well as transport network simulation and analysis. However you should be enough of a generalist to be unafraid to dive into other areas of the application where needed.

Technology-wise, Podaris is built on Javascript/ES6, Meteor.js, OpenStreetMap, and OpenLayers, a mapping library. Your expertise with Javascript is more important to us than your experience with the particular libraries that we use. Experience with building large single-page apps is particularly helpful. Experience with OSM routing engines, transit data formats like GTFS, and GIS tools/databases is also a strong plus.

----------

Role: Customer Success Associate

Job Description: You will learn the Podaris platform to a very high level, then assist in training new customers and supporting existing customers in their projects. You have an innate aptitude for self-learning new and unfamiliar software, and have excellent verbal and written communication skills, which make you adept at teaching people who don't have such an innate aptitude. You have an interest in all aspects and disciplines involved in creating transport systems and the built environment. You're especially knowledgeable with regards to transport planning and operations, but find it easy to talk to urban planners, architects, civil engineers, and more. You've at least dabbled in many different kinds of design/planning/engineering tools, and have some experience with GIS in particular.

When not directly assisting our customers, your responsibilities will include beta-testing new functionality, improving documentation and training materials, and creating case studies that can be used for sales & marketing purposes.

nkoren··on Tesla’s headquarters will move to Austin
No, it's really not.

Source: while working as a transport planning consultant, I had a private client in Austin. He flew our team around the city in a helicopter, saying "see all this traffic? It's insane!". I'd just flown in from New Delhi. By the standards I was accustomed to, I didn't see any traffic at all.

Certainly Austin does have a need for much better public transit -- and if being upset about traffic is a catalyst for making that investment, then that's great! -- but in that respect it's no different to most other major metropolitan centers in the US.

nkoren··on A Tunguska size burst destroyed Tall el-Hammam, Bronze Age city in Jordan Valley
We should. I've seen an analysis which concluded that your chances of dying in a meteor impact are about the same as your chances of dying in a car crash -- eg., really quite high. This doesn't sound right, because at as an individual, you're obviously far more likely to die in a car crash -- it's extremely unlikely that you'll personally die from a meteor impact. However in the very rare event that you are killed by an impact, then there's a very high probability that anywhere from tens of thousands to tens of millions will also be killed by the same event. So overall the numbers roughly balance out, and are high enough to be worth taking seriously.

Fortunately there are groups that are doing just that: https://b612foundation.org/

nkoren··on A Tunguska size burst destroyed Tall el-Hammam, Bronze Age city in Jordan Valley
Here's another one, 1490 in China: https://en.wikipedia.org/wiki/1490_Ch%27ing-yang_event

And of course if the 2013 Chelyabinsk bolide had been just a bit larger, then the city would no longer exist. (Larger size = lower airburst, so even a modest increase in megatonnage can result in substantially more energy transferred to the ground).

And there are other recent city-killer-size impacts that are well-known but fortunately didn't have cities underneath them, such as https://en.wikipedia.org/wiki/Campo_del_Cielo

nkoren··on Transforming OpenStreetMap into thick roads and intersections
That is gorgeous! I want it.
nkoren··on Tianwen-1 attitude in Mars orbit
Googling tip: if what you're looking for is the definition of a word, try typing:

  define:attitude
You'll see that the third definition which comes up is: "the orientation of an aircraft or spacecraft, relative to the direction of travel."
nkoren··on Watch an earthquake roll across a continent
I had the same question. Here's the answer: http://www.usarray.org/Alaska
nkoren··on What if Planet 9 is a Primordial Black Hole? (2019)
As I understand it, the fact that black holes are rotating precludes them from actually being a point singularity -- "rotation" having no meaning for a non-dimensional point. So they need to have some kind of disk or ring structure (still infinitely thin, however). (Note: I'm not a physicist, could be completely wrong).
nkoren··on Giuseppe 'Bepi' Colombo: Grandfather of the orbital fly-by
> Almost everything known until now about the planet Mercury comes from Mariner 10’s orbits during 1974-75

Er, rather than "until now", surely the article means "until 2011, when MESSENGER went into orbit around Mercury"

nkoren··on Arcology: The city in the image of man (1969)
You're welcome!

Meanwhile, I just looked at your profile, and "simulation software for electric utilities" is something I have a very specific interest in. If you feel like telling me more, get in touch.

nkoren··on Arcology: The city in the image of man (1969)
Great questions!

> 1. What's the most populous arcology that's currently inhabited?

The term "arcology" hasn't really been embraced by the wider urban planning community, so in terms of self-identified arcologies, that'd just be Arcosanti, population 80-100. But arguably one could apply the term to something like Whittier Alaska (population: 318), Masdar City in the UAE (population: 1,300?), or even something like "The Line" in Saudi Arabia, which, when I talked to them a few weeks ago, already had 17,000 people on-site. Lots of projects in China probably qualify, depending on how far you want to stretch the definition. A few may even have been built -- there's a lot that's just on paper.

> 2. Do the seasteading people and the arcology people have much overlap?

Not that I'm aware of, although I'm sure there's at least a bit.

> 3. Are arcologies aimed at making affordable housing or no?

One of the great deficiencies of Soleri's forumlation of Arcology theory is that he incorporated virtually no concept of urban economics, so this question would've just been out of scope, from his perspective. Which is a problem, because it's a good and urgent question, and needs to be answered. Doing so would require evolving the notion of "arcology" well beyond how Soleri defined it, however. (And in my opinion that would be a good and necessary thing, since otherwise it's a largely un-realizable theory.)

So from a more personal perspective, I'd say that making housing more affordable is something which arcologies ought to be aiming at, and given their general frugality -- via minimal land use, maximal sharing of resources, etc. -- should be achievable. But there are many devils in the details which are yet to be worked out.

(Also, it's worth pointing out that "affordable housing" itself may actually be a too-narrow formulation of the problem. Net cost-of-living is probably a better way to think about it. Perhaps your actual living space is actually a bit more expensive -- but given that you don't have to spend any money on a car or gas or insurance or even public transport, then that really ought to compensate. Or perhaps your personal living space is a bit cheaper but a LOT smaller -- but given the fantastic public amenities at your doorstep, it's a richer life overall. In other words, what needs to be optimized is the whole-life package, not just the cost of a domicile. Although obviously the latter does need to be within reach, in a way which for many people it currently isn't.)

> 4. Is anyone working on incrementally built arcologies, or is that just a city?

I'd say that yes, people are "sort of" working on incrementally-built arcologies -- and that's not simply a city.

Again, this is an area where Soleri's formulation of Arcology theory is quite deficient. He always thought about arcologies as things that are wholly self-contained (although not necessarily self-sufficient; he thought that was a false ideal) and built from scratch. There are places in the world (mostly Africa and Asia) where building whole new cities from scratch is a very real prospect, but for the most part, the developed world isn't going to (and arguably shouldn't) do that. In that case, the question is whether the principles of Arcology are something that can be adopted incrementally, and if so, how to do that.

My personal answer would be that yes, there are ways these principles can be brought forward piecemeal in existing cities, via projects that (among other things) promote high-density, car-free, mixed-use development. Here's a good example of such a project, also in Arizona: https://culdesac.com/

There are limitations to this kind of approach, but it's definitely a good start.

> 5. There is basically no discussion of agriculture in the article; is anyone working how arcologies integrate/improve the food system?

Yes! Integrated food production has long been a concern at Arcosanti (and of Arcology theory in general), and there's been an on-and-off agriculture program there, as people willing to take it on have come and gone. This has recently been re-started and re-energized by an independent nonprofit called Arco Agritecture. You can read about them here: https://www.arcosanti.org/arco-agritecture/. There's also a newsletter signup etc. here: https://mailchi.mp/50d2bae3774b/v0z8xb894p

Hope that helps!

nkoren··on Arcology: The city in the image of man (1969)
Some of those models are preserved in the archives at Arcosanti and Cosanti. Unfortunately many of them have been lost to the elements.

There's a lot of interesting work currently being done on bringing those models into virtual reality and even mixed reality.[1] Of course bitrot is always a thing, but hopefully these will last longer!

https://www.youtube.com/watch?v=esysldCzFgs&list=PL-bfFPHb2g...

nkoren··on Arcology: The city in the image of man (1969)
Time for me to give my standard AMA offer to the HN crowd that is interested in this. I knew Soleri well, working with him at Arcosanti from 1992-1996, and the subtext to my entire subsequent career continues to be trying to build arcologies. So, Ask me Anything.

(Oh, and also: the Cosanti Foundation, which runs Arcosanti, is currently searching for a new Executive Director[1], and I'm helping with the search. If you have any candidates in mind, please point them in this direction.)

1: https://www.arcosanti.org/job/executive-director/

nkoren··on What cats do when we’re not looking
You do not know cats very well. They exhibit an extraordinarily diverse range of behaviours, interests, and intelligence. I've had cats who were brilliant hunters and dumb as posts; I've also had cats who were wholly disinterested in hunting but showed considerable intelligence in terms of puzzle solving. And most cats I've known have been clearly motivated by social interaction as an end in itself. They put a lot of thought into this.
nkoren··on The Day the Good Internet Died
Saw the title, thought "nope, they're wrong, that'll be the day the plug was pulled on Google Reader" -- and lo and behold, that's exactly what the article is about.

Confirmation bias for the win. Upvoted.

nkoren··on Haiku Beta 3
Honestly I still miss Gobe Productive. Fantastic productivity suite. Not very full-featured, but everything just came together in a smooth way I haven't seen replicated since.
nkoren··on Pacific islanders likely found Antarctica first: study
Also, the fact that many Polynesian languages used nearly the same word for "sweet potato" as some South American languages (kuumala -- Polynesian vs. kumara/cumal -- Quechua) is kind of a clue, yes?

The fact that the "vegetation raft" theory persisted for more than a few seconds in the face of this knowledge always astonished me.

nkoren··on Mars: NASA's Perseverance rover's first 100 days in pictures
"Very strong" is not quite right. The winds on Mars can be very fast, but given the low atmospheric pressure, they don't carry a lot of force. Enough to create sand dunes and significant aeolian weathering over millions of years, but they'd never knock you over.
nkoren··on Egyptian Circumnavigation of Africa ~600 BC
The ancient world had far more capabilities than we often credit it with. The one that impresses me is the dialkos, also from the 6th century BC, which was nominally the world's first commercial freight railway, if you stretch the terminology a bit. Almost two and a half millennia between the first and the second.

History is fickle and nonlinear. In 1968, Kubrick and Clarke could look at the timeline between the Wright Brothers' first flight and then impending moon landings and conclude -- very reasonably! -- that there would be cities on the moon in 2001. And yet it's just as plausible that the moon landings, like this circumnavigation of Africa, could have simply been a momentary flex of a civilisation at the height of its powers, not to be repeated for thousands of years.

I'd love to see an alternate history which diverges at 600 BC. What if somebody had managed to connect an aeolipile to a drivetrain to a dialkos bogey, and kicked off the industrial revolution in Greece, at the same time as the circumnavigation of Africa had started the era of Phonecio-Egyptian colonialism? How different would the world look today?

nkoren··on From apes to birds, animal species that “laugh”
Swimming by myself in the Sea of Cortez, I was surrounded by a pod of bottlenose dolphins. After observing me for a while, they suddenly started laughing, did a few flips and other acrobatic displays, and then swam away.

I was left in no doubt -- none whatsoever -- that they were laughing at the absurdity of what I evidently considered "swimming".

Maybe I'm anthropomorphizing them... but I'm pretty sure they were dolphopomorphizing me first, and it was cracking them up.

Anyhow, those dolphins were a bunch of punks.

nkoren··on Movies every physics lover should watch (2020)
Actually, the Expanse portrays how ships can turn and change directions basically perfect. Where it takes liberties is that ships can't turn and change directions as much as they do. The engines and propellant in the Expanse is way way WAY efficient -- probably much more efficient than our physics allows. In the real world, you'd either be manoeuvring with 1,000 times less zest, or having to refuel about 1,000 times more frequently, or some combination of both.

But apart from that, its physics are pretty close to 100%.

nkoren··on BBC employee says ‘incredible’ amounts of complaints have racial bias
Literally the next sentence provides strong (if circumstantial) substantiation for this.
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