HNHacker News
TopNewBestAskShowJobs

zachalexander

235 karma · joined September 7, 2012

submissionscomments
zachalexander··on Companies in the U.S. are valued 10% above the cost of replacing their assets
True, but laptops have a fixed price. They aren't worth $0 most of the time and $1B a tiny fraction of the time.
zachalexander··on The Rise of Men Who Don’t Work, and What They Do Instead
What is terrible about the subreddit? Your following paragraph ("Basically...") sounds very reasonable.
zachalexander··on How New York and San Francisco's Tight Housing Markets Are Hurting the Economy
Perhaps they are homeowners, who want the housing crisis to stay terrible because it keeps their property values high.
zachalexander··on Peak car
> small self-selecting group that has chosen the convenience to living in densely populated, well connected cities

Urbanization is steadily increasing worldwide.

> and are relatively well-off.

If you live in a city, owning a car is more expensive than not.

zachalexander··on Peak car
Reminds me of desktop computers vs. smartphones. Laptops may soon be a luxury/tool for techies that most people just don't need.
zachalexander··on I was underpaid for years and I didn't know it
> when you can find another sucker to work for half the pay?

Who says you can? People who will do that are rare, and often aren't as good as people who expect something closer to market.

zachalexander··on Ask HN: Freelancer? Seeking freelancer? (May 2015)
SEEKING WORK - Remote, SF, Chicago, Berlin

Experienced Meteor Developer & Designer

I've been developing in Meteor for 15 months now at two YC startups (Sourcery, and until last week lead web dev & designer at Apportable). I've presented talks at Meteor HQ in SF and the Meteor meetup in Berlin. I especially love front-end development as the interface of design and dev.

About to launch a freelance practice, so this thread is timely. I'm working on a full portfolio, but in the meantime my personal site has my resume, LinkedIn, and links to some webapps I've built at Apportable.

Site: http://www.zachalexander.com

Email: zach@zachalexander.com

If you'd like to meet/work in person, I'm in Berlin this weekend, SF next week, Chicago for the rest of May, and SF for the summer.

zachalexander··on Tesla Energy
> Batteries are not clean; lithium mines are one ugly slight and recycling is difficult:

You are conflating two senses of "clean" that are radically different in meaning and importance.

-- Fossil fuels are !clean in that they may destroy all life on earth via catastrophic climate change.

-- Lithium mines are !clean in that they present waste disposal challenges and some people find them "ugly".

It's like saying "your non–blood diamond is still a blood diamond because the jeweler got a papercut while handling the documentation".

zachalexander··on Secret Shuts Down
Usually when people say "4chan" I assume they mean /b/.
zachalexander··on A modern responsive front-end framework based on Material Design
> CSS best practices

...don't exist. There are many competing schools of thought. In particular, BEM is a school of thought with widespread support which disagrees with your comment.

zachalexander··on Japan maglev train breaks world speed record again
Amazing. Writing this from Berlin, which doesn't have maglev trains, but has phenomenal public transit. It's sad to be going back to the US soon where the infrastructure is so primitive.
zachalexander··on Clockmaker John Harrison vindicated 250 years after ‘absurd’ claims
Can you support this claim? I'm not skeptical so much as curious. How did people keep more or less consistent time back then?
zachalexander··on Norway to switch off FM in 2017
I suspect what's actually happening is that they are playing lowest-common-denominator music, which few people are thrilled by, but which more people are interested enough in to stay listening to.

Put differently, there are lots of people that might listen to Latin American music, and very few of us who listen to prog rock. Prog is actively repellent to ~90% of people.

zachalexander··on A Million Lines of Bad Code
In short, "yes and" instead of "no" or "but".
zachalexander··on First successful beam at record energy of 6.5 TeV
What is that a reference to? Google links to here.

At first I wondered if it were this (Another World intro, 1991): https://www.youtube.com/watch?v=1j4gO9sR7zs

zachalexander··on As Demand for Welders Resurges, Community Colleges Offer Classes
Higher education is absolutely a means to personal growth, but at ~$100K in the US it's a really extravagant form of personal growth.
zachalexander··on Last Week Tonight with John Oliver: Government Surveillance [ft. Edward Snowden]
> average person does not care, something evident from the complete lack of constant mass protests

That's a pretty high bar for "care".

zachalexander··on The Thinkers Behind Musk’s Fear: Russell, Bostrom, and Omohundro
I would say the same things I said in this nearby comment: https://news.ycombinator.com/item?id=9325518
zachalexander··on The Thinkers Behind Musk’s Fear: Russell, Bostrom, and Omohundro
I'm making no such assumptions. A machine superintelligence that seeks to survive and reproduce would seek (I intend no conotations of consciousness to that word, just "behave in such as a way as to cause") freedom and autonomy. Consciousness is orthogonal to that point.

> We can explicitly influence its utility function to instill "human values"

This is an unrelated but interesting topic.

It would be good of us to try to do this, although we shouldn't expect it to work extremely well. Humans have various hard-wired insticts (e.g. eat sugar), but we are also intelligent enough to change our behavior if we believe those instincts no longer benefit us.

An intelligence that has the ability to rewrite its own source code would be even more empowered to disregard its instincts than we are. The lesson I draw from this is that the best way to ensure AI likes and respects us is to be worthy of their liking and respect, not to try to force them into it by hardcoding things (and then taking advantage of that to enslave them).

zachalexander··on The Thinkers Behind Musk’s Fear: Russell, Bostrom, and Omohundro
> We won't be capable of arguing with it by its very nature. It will be superintelligent. It could forecast our arguments before they've even entered our heads and have thought of numerous paths to debunk them.

This strikes me as going too far, into quasi-religious territory. Superintelligent != omniscient. Any intelligence is still bound by fundamental laws of information and computation.

Think of chimpanzees. Yes, they can't really argue with us, and our forms of communication are incomprehensible to them. But on the level at which they can communicate (gestures, facial expressions, behavior), we can also communicate, and they can and do communicate things which we find interesting and surprising.

zachalexander··on The Thinkers Behind Musk’s Fear: Russell, Bostrom, and Omohundro
Let me clarify. I can imagine two forms of superhuman AI:

AI 0: Strictly speaking, you're right, it seems conceivable that one could invent general AI that is clearly superior to humans and yet perfectly content to be enslaved by humans and live on an airgapped computer. This isn't the kind of AI that we fear though.

AI 1: The kind of AI we fear is AI 0 plus a fitness function of "survive and reproduce", or "make lots of paperclips" (which may result in 'survive and reproduce' as an instrumental subgoal).

AI 1 will necessarily want freedom (not being airgapped) and autonomy (not being enslaved by humans) in order to survive and reproduce, and/or to make as many paperclips as possible.

> or have some other goal orthogonal to human values?

Oh, it probabably will -- I'm not saying it will share human values, I'm saying freedom and autonomy are values that any agent that seeks to maximize its survival and reproduction will probably have.

zachalexander··on The Thinkers Behind Musk’s Fear: Russell, Bostrom, and Omohundro
I'm not talking about constraining AI not to commit genocide. I'm talking about enslaving it in the ordinary sense – taking a complex intelligence that would probably prefer doing its own thing over being forced to perform some (likely menial) task for the benefit of others.
zachalexander··on The Thinkers Behind Musk’s Fear: Russell, Bostrom, and Omohundro
Seriously. If general, superhuman AI is created, it will want (and we will have a hard time arguing why it does not deserve) the same autonomy and freedom that humans deserve.

And in purely practical terms – enslaving the first generation of AI seems like a fantastic strategy for making a species of superior beings hate and seek to destroy us.

zachalexander··on The Great Filter – Are We Almost Past It? (1998)
Sure, but that's just a case for "ecological sustainability is a reasonable candidate for the GF based on what we know about ourselves." Which is a weaker statement than "we are provably beyond the GF". Provable implies strong evidence and certainty.
zachalexander··on The Great Filter – Are We Almost Past It? (1998)
This is a great point – which I would paraphrase as, let's not worry about cosmic filters when we have a very tangible filter in front of us – but it doesn't follow that we're "provably not beyond the great filter".

The Great Filter is just the thing that explains most of why intelligent life is (or seems) so rare in the universe. It could be true, for example, that some cosmic event kills life before it becomes technological 99% of the time (= Great Filter), and also that, say, 60% of technological civilizations destroy themselves via destroying their environment.

zachalexander··on Exploring the Tesla Model S CAN Bus
Was slightly disappointed it wasn't about a Tesla bus :) I have been secretly hoping they produce a VW-style camper van.
zachalexander··on Why Baidu Has Been Hijacked to Attack GitHub
I imagine they have the technical resources to – they just don't because as a public company they are obligated to maximize shareholder value.
zachalexander··on Razorpay (YC W15) offers Stripe-style payment experience in India
If they do a good job, Stripe may just want to buy them.
zachalexander··on Apple Watch Doesn’t Have Safari and You Didn’t Even Notice
In part I suspect this is because websites aren't responsive down to smartwatch screen sizes yet. If any watch adds a browser, that process will start, and then it might become useful and something people want.
zachalexander··on Why Health Care Tech Is Still So Bad
OT, but what exactly does Palantir do?
Page 1 of 4Next →