Scree – Page 301 – Craig Constantine

Oil limits →

Published May 15, 2014 · All posts on May 15

This model “works” fairly well, as long as the economy is growing fast enough–population continues to grow and resource extraction continues to grow as planned. In a finite world, we know that this model cannot work forever. At some point, we can expect to start reaching limits.
What do these limits look like? I would argue that in the case of resource extraction, these limits look like increasingly high cost of extraction.
~ Gail Tverberg from, Oil Limits Reduce GDP Growth; Unwinding QE a Problem

Elsewhere, this is 4uouoi4. — slipbox

You should also read “Quantitative Easing (QE)” (the first three, short paragraphs on WikiPedia summarize it neatly.)

My opinion: We need to start seriously talking about a STEADY STATE ECONOMY. What would that look like? How would it work? How do we get to that? Seriously. We simply CANNOT have a growing and expanding economy forever on a finite planet with finite room and finite resources. What part of “finite” don’t you understand?

What does “honest” mean in Kinokawa Aikido →

Published May 9, 2014 · All posts on May 9 · Writing

When we opened the new dojo in Allentown, I sat down to try to write a short description of what distinguishes Kinokawa Aikido. I wanted to avoid pretentiously explaining “what makes it better,” because starting down that path will instantly close off the minds of certain readers. Instead, I wanted to lay out the hallmarks of Kinokawa so that readers could get a sense of the style at a glance.

There is a bit more at Aikido on the dojo’s web site. But here is the part about honesty:

A second hallmark of Kinokawa Aikido is that is honest — in the sense of being interested in honestly exploring Aikido as a high intensity [physical and mental], combat effective, applicable to your daily life, sort of practice. In fairness, practitioners of hard type martial arts will generally not consider any sort of Aikido as combat effective or workable in a real world scenario. (Obviously, we disagree with such a prejudged assessment.) But setting aside the judgement (does Aikido work, or not, in real application?), it is the goal of honestly exploring those concepts, within the framework of Aikido, which is a critical feature of Kinokawa.

…and here are some similar thoughts from Tom Collings, from Responding to Aggression – Part 2:

… The rule of thumb in military and police training, established through exhaustive battlefield and police critical incident research is: “if it takes long to learn, it probably won’t work under stress.” Yet, as black belt martial artists we take great pride in the techniques that took us many years to master, and it would be unthinkable at the dojo to teach only what is easily learned. Who would that impress? The other rule is: “practice what you will need to perform.” That means our training must very closely match what we will confront.
Do those of us in the aiki arts really believe that assaults commonly occur by someone running up reaching for our wrist, or striking at us from above their head as if holding a sword? I guess we do because we devote most of our valuable training time to these scenarios. If it is obvious that modern day assaults are very different from these classical style attacks why do we not modify our curriculum more in line with what we will actually confront?

To be and to last →

Published May 3, 2014 · All posts on May 3 · Parkour, My Journey

This entry is part 5 of 72 in the series My Journey

To last? That old lesson about the brightest flame burning the quickest is particularly true in Parkour. What use is a person who lasts five years and has to stop training due to bad knees and a broken ankle? How useful is a body that can’t move pain free due to years of neglect and abuse? The journey of Parkour was never meant to be a brilliant flash of spectacle and show, it was always intended to be a lifelong pursuit of improvement and one that doesn’t need to end once the body begins to show signs of age.
~ Chris “Blane” Rowat from, 50 Ways To Be and To Last in Parkour | Part 1 – Training The Body

Elsewhere, this is 4ubowa1. — slipbox

Ignore the show reels. Ignore the spectacular. Those MAY be inspirational to you, but your journey SHOULD be a long series of small, eminently POSSIBLE steps. Go to your first class and try anything; try SOMETHING. Stop when your body has had enough. Repeat. In a few months, you will have grown so much that you will hardly recognize yourself.

Operable systems →

Published April 21, 2014 · All posts on Apr 21

Especially for complex, multi-purpose systems, the gap between how things are supposed to work and how they actually work can be quite large. (Ask any police sergeant about the difference between policing in theory and policing in practice!) A primary function of operators is to bridge this gap in ways that result in better rather than worse outcomes. The capacity of systems to be operated is what allows operators to perform this valuable function, sometimes called technical work.
~ Richard Cook from, «http://programming.oreilly.com/2013/10/making-systems-operable.html»

Elsewhere, this is 4uoema1. — slipbox

More and more I’ve been getting a lot mileage from this idea: Make things easier TO USE, rather than trying to fully automate (i.e., so I don’t have to use them.) One cornerstone to accomplishing that is creating “affordences“.

First habitable exoplanet →

Published April 17, 2014 · All posts on Apr 17

The first Earth-sized exoplanet orbiting within the habitable zone of another star has been confirmed by observations with both the W. M. Keck Observatory and the Gemini Observatory. The initial discovery, made by NASA’s Kepler Space Telescope, is one of a handful of smaller planets found by Kepler and verified using large ground-based telescopes. It also confirms that Earth-sized planets do exist in the habitable zone of other stars.
~ from, First potentially habitable Earth-sized planet confirmed: It may have liquid water

Mark you calendar: April 17, 2014. First confirmation of the existence of a HABITABLE planet… Temperature, gravity, rocky (like the Earth)… A. HABITABLE. PLANET. I got chills reading this.

Sheep or sheepdog? →

Published April 16, 2014 · All posts on Apr 16

So the first step in becoming a sheepdog is to simply decide to become one. Don’t take this decision lightly. There are heavy moral, physical, emotional, and psychological costs that come with it. When you decide to become a sheepdog, you’re also deciding to live a life of service to your fellow man, to run to danger when others flee, and to stand up for right despite the cost. Are you ready to accept those responsibilities and risks, and the consequences that come with them?
~ Brett McKay from, Are You a Sheep or Sheepdog? Part III: Your Roadmap to Becoming a Sheepdog

Elsewhere, this is 4uaoae1. — slipbox

Disclosure: I do NOT think of myself as a “sheepdog”.

I think the whole “sheep versus sheepdog” mentality discussion is much more useful in so far as it speaks to enlightening the sheep. Are you a victim going somewhere to happen? …or are you a mentally strong, open minded (in the sense of being flexible to your environment) human being? Are you seeking and buying things? …or are you seeking happiness?

Hello App.net →

Published April 15, 2014 · All posts on Apr 15 · Writing, Internet Tech

App.net is WAY cool

What makes it cool, different and BETTER is:

They built the PLATFORM, (the heavy lifting behind-the-scenes that makes it all work)
They wrote the API, (the instructions for how to build things to USE the platform)

…and that’s all they wrote.

Aside: Yes, they did write sample applications. It’s hard enough to wrap your brain around it as it is, let alone if there were no apps to play with. So they built a web-based front end called “Alpha”, (for example.)

You, (dear reader) do not “look at” App.net, and you do not “use it”. You use APPLICATIONS which are built on the App.net platform/API.

App.net is different

App.net charges the developers: They’ve built a stable, powerful and feature-rich PLATFORM. They logically believe that developers will be willing to pay to use the platform.

Developers build applications: They pay App.net for access to connect their application to the platform. For example: Tapbot’s Netbot app is a superlative app using the platform. (App.net also maintains a directory of available apps.)

People use the applications: You, dear reader, choose your favorite application. You can use the free “Alpha”, (that’s it’s name) web front-end that App.net wrote. You can also download an app, (some are even free) from your favorite app store for your mobile device.

So, for example, how do you find me on App.net? Easy: Open your favorite App.net application and look for “cc1315”, my full name, or my email address. If you like to use the “Alpha” web-based application, then I’m /cc1315 . So there’s you using an App.net application! Another example is the application I wrote, (it required three mouse clicks) which enables this blog to push my posts into the App.net platform.

Wait. Wat?

The problem with all the big-name social networks is that they built, own and control the platform AND the application.

By “problem” I mean “things regular-users don’t like.” For example: Ads appearing; Weird algorithms that determine what I actually see and which strong-arm content-creators into paying money to boost viewership; Posts that look like posts but are really ads paid for by advertisers. And things that limit content creators, like: Not allowing posts at all into the platform; Weird rules that limit how posting is done because they don’t want the users leaving the platform to go read content directly.

This is exactly WHAT WE DESERVE. The companies that built the platforms get to create the rules because they own the platform, control the API and they control the applications. The people USING the social network are the product that gets monetized. So everyone shows up, for free, to socialize. But then the advertisers buy-in to get access to all the people. To the people socializing, it feels like the social club is letting weirdos into the club who roam around asking if we want to buy things.

Don’t believe me? Here are some search-result links:

“why Facebook sucks”
“why Twitter sucks”
“why Pinterest sucks”
“why Instagram sucks”

App.net fixes this how?

Let’s think through the “problem” scenarios…

First, you do still choose who to follow. So let’s assume for this discussion I’m following a couple hundred accounts. (My friends, some favorite businesses, etc)

I see a post from a business, but it’s actually an ad! …how do I make that go away? Current social networks? …you cannot.

Aside: Yes, some social networks let you kill that particular ad, but there are always more to follow. In reality, you’re just TUNING what ads they will show you, not blocking out ads.

With App.net it’s easy: Stop following that account. (Or maybe contact them and say, “yo, less ads please” if you really like their other posts.) App.net won’t let them send you further content, that would be a lousy platform that developers wouldn’t pay to use!

So maybe that ad you see is being shown by the application you’re using… it’s not really coming through the App.net platform… Easy: Don’t use that application. Or maybe pay them to turn the ads off. (Look! An application ecosystem where great apps win out.)

But, (you ask) what If someone tries to write an app to spam ads into the App.net platform? It turns out the platform doesn’t have that ability. (The current social networks have that ability BIG TIME — it’s how they make money.) But App.net makes money from the developers, so they don’t have a “spam everyone” feature in the platform. That’d be a lousy platform that developers would not pay to use.

content filtering

App.net delivers everything from all the accounts you’re following; That’s why developers want to pay to use the platform; It works well! So the applications might filter, or sort, or whatever. (Maybe, show me more posts from my friends whose posts I favorite.) But that’s a feature that you CHOOSE when you select what app to use. Don’t like how the app filters or sorts? …switch apps!

content posting into the platform

Current social networks want you to use their apps to post content. App.net simply moves the content through the platform. (Which is why it’s a great platform that developers want to pay to use.) So anyone can write any application to post content into the network.

Closing thought

The only thing more cool (in social networking) than App.net is Tent.io . With Tent.io, instead of having one centralized platform like current social networks and even App.net, you have one giant fabric which is composed of everyone’s PERSONAL data platform. So Craig’s posts are on Craig’s platform, etc. Then the Tent.io magic moves the messages around between the nodes, prevents anyone from impersonating anyone else, etc.

But that’s another post altogether… :*)

Heartbleed: For want of one nail, the kingdom is lost →

Published April 8, 2014 · All posts on Apr 8 · Internet Tech

The Heartbleed OpenSSL problem is big news ( http://heartbleed.com if you’ve been under a rock ). What’s wrong?

In short, Heartbeat allows one endpoint to go “I’m sending you some data, echo it back to me”. It supports up to 64 KiB. You send both a length figure and the data itself. Unfortunately, if you use the length figure to claim “I’m sending 64 KiB of data” (for example) and then only actually send, say, one byte, OpenSSL would send you back your one byte — plus 64 KiB minus one byte of other data from RAM.
Whoops!
~ Matt Nordhoff from, How exactly does the OpenSSL TLS heartbeat (Heartbleed) exploit work?

So this one, tiny-looking problem brings our entire sand-castle Internet kingdom down. “Secure” web sites turn out aren’t necessarily secure. Worse, they haven’t been secure for some uncertain amount of time. So, anything communicated insecurely, during some uncertain time-frame… is, uh, possibly snooped, stolen, etc. The system admins have to patch the fix in, then redo site certificates, then everything everyone has put to/from those sites, (your login and password for example!) has to all be considered stolen/tainted and has to be reentered.

Bonus: it’s even worse than I’m making it sound: Try this on…

http://security.stackexchange.com/questions/55116/how-exactly-does-the-openssl-tls-heartbeat-heartbleed-exploit-work

http://security.stackexchange.com/questions/55097/can-heartbleed-be-used-to-obtain-memory-from-other-processes

Also, people didn’t know to click on images →

Published April 6, 2014 · All posts on Apr 6 · Internet Tech

I distinctly remember:

When inlining of images happened; The first time it was possible to put an image directly INTO the page. And JPEGs man. JPEGs where coooooooooool.
Also, tables. Today, everyone loves to whine about how bad it is to use tables to layout pages. NOT having tables was much, much worse.
And image-maps; The idea that WHERE exactly you clicked on an image, could take you to different content. I won’t even get into what we had to do to make it work… (but it involved: convex polygon mathematics, C code, a compiler, and a DEC Alpha work station.)
…and we had to TELL people, “A lot of images in Skew are links… Click at will!” when we started e-publishing a magazine in December 1994.

So yeah, back in the day we had Mosaic. Then these guys hit it out of the park with:

Navigator was the way millions of people around the world were introduced to the web. Many web technologies and standards, such as as SSL, Java, Javascript, open APIs and support for online media, were innovations that Navigator made mainstream.
~ Brian McCullough from, On the 20th Anniversary

Elsewhere, this is 4uieoe1. — slipbox

Vault box build →

Published April 4, 2014 · All posts on Apr 4 · Parkour

These plans are for building a vault box. This is not easy. You’ll need some good circular saw skills, patience and a lot of labor. Read on!

The original, in case you have a hardcopy, is online at
http://constantine.name/vault-box-build/

Drop me an email: Comments, questions, and suggestions for improvements are welcome. Best of all would be if you sent me some photos of what you built, preferably a big group photo of you on them, or using them or whatever. My email is my first name, craig, at this domain. (Yes, this is a “.name” domain.)

(The original design of this project is still available at, How NOT to build a vault box.)

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