Tricking people into sharing personal details and logins by pretending to be someone else — known as phishing — is surprisingly effective. Some of the smartest people I know have been taken in by it and it only takes a moment’s lapse in concentration or uncertainty to fall for it. The maths is simple: it barely costs anything to send an email to 100,000s of people and it only needs a few people to get caught in the net for it to pay off.

Also, look out for targeted spear-phishing attacks where scammers may seem to know specific details about yourself to make the attack more credible. Or what’s known as whaling — the targeting of high-profile figures such has heads of companies or celebrities with elaborately planned and sometimes very convincing schemes.

You can also check if you’ve been caught in a data breach at: Have I been Pwned.

Types of phishing

Coined by Linda Stone, continuous partial attention describes the state many of us find ourselves in as we try to stay connected to all the different areas of life that are now possible — as a result we pay only partial attention to anything.

The accompanying stress or tension and, sometimes, decrease in relationship quality may contribute towards our increasing desire and awareness for the opposite: the wholly disconnected times of meditation, yoga, forest bathing, time in the outdoors, and other activities that allow us to give our full engaged attention for our wellbeing once more.

Continuous partial attention

Two factor authentication is the neat technique of adding extra security by requiring two different types of verification. So, rather than ask you to provide two passwords — both things you could remember or find written down — if you are asked to provide a password and a code you could only have if you had a particular device, security is greatly enhanced.

The usual factors involved include asking for two from:

Hence the convenience of photo ID where you have to provide the ID and also look like the photo. Or provide a ticket and a code, or a chip and pin…

Also see: choose passwords that make you happy, and 8 character passwords.

2 factor authentication

The value of a telecommunications network is proportional to the square of the number of users of the system.
— Robert Metcalfe

This law explains a little of the remarkable power of a growing network. Each time you add a user, or node, to the network, the number of connections increase in proportion to the square of the number of users. So, in this simple example where every new node gets a connection to each of the existing nodes, you can see that, say, adding a single node to an 11 node network creates 11 new connections.

It’s a simplified example because in most networks the value is not directly proportional to the number of connections as some connections or users may be more valuable than others, and usually adding a new user wouldn’t create a connection to all existing users — say if it was in a different country, or people spoke a different language, or just cared about different things. But nevertheless, you can see how a network quickly becomes valuable as users join.

So, Facebook has about 2 billion users…

Metcalfe was talking about telecommunications networks and the basic proposition has been modified since it was formulated including by Metcalfe himself.

Once again, just because something is called a law doesn’t mean it is one. See Fitt’s Law

Metcalfe’s Law

Did you you know, a rubber duck can help you solve your problem? Or, a teddy bear, or, heck, a table, whatever. Have you ever been called over to someone’s desk to help them solve a problem, and as they explain what they were doing to you they figure out the answer themselves?

Rubberducking is the simple technique of explaining your code, or whatever you’re working on, to a rubber duck, and, in the process of explaining it, finding the answer yourself. Surprisingly effective, and way cheaper than hiring a contractor for the day.

Rubberducking

How the expectations of new technologies often evolves.

The Gartner Hype cycle

I’ve never used one, but I’d love to. They seem a little like magic. Basically, you pressurise the air of an underwater box enough to keep the water from coming in. This enables you to have a kind of swimming pool entrance to water even though you’re already actually underwater. So cool.

Moon pool

A remarkably common pattern for the evolution of many things. You see it all the time in the evolution of technical things, but also many systems in general.

When you start to reach the top of the limits of what one system can do you’ll start to see a focus on efficiency, cost reduction and small improvements and optimisation. This is great because it forces a new creative solution to arise in order to make any real progress. An image search gives a few examples.

Also, see some related sketchplanations: The long nose of innovation, designing for adoption, understanding the chasm.

The S-curve.

I love this concept from Stewart Brand, that different aspects of the world change at different speeds. So, fashion and art changes and cycles faster than commerce which is faster than infrastructure, and in turn governance, culture and finally Nature. The outer layers tend to innovate faster and so pull along, or be stabilised by, the lower, slower layers. At the boundaries you get constructive turbulence, say between Uber and governance, or how the growth in video streaming requires Internet infrastructure to come along with it. I’m sure you can find counter examples, but as a framework for thinking about big complex things I find it quite handy.

Pace layers

If you’re going to be typing them all the time they might as well remind you of something good. I have found this makes me happier.

Choose passwords that make you happy

This chart is from the original he published - just the five data points. Pretty simple huh? The “observation, originally made in 1965, that the number of transistors on an integrated circuit would continue to double every year. Although this increase has slowed to a doubling in eighteen to twenty four months, Moore’s law has held true for nearly fifty years and is the foundation for the astounding Information Technology revolution we see around us.”

For those interested in Moore’s law, remarkably, I think the best information is my Dad’s book, The Computing Universe, which is also the source of the quote.

Moore’s Law

Created by desire and use. Sometimes I find myself walking on the traces of one as a statement that ‘there ought to be a path here’ - voting with my feet.

There’s the classic, perhaps apocryphal, story of the architect who didn’t build any paths on a campus until people had worn them in, showing where the paths should be.

The phenomena has found use in technology with the phrase 'pave the cowpaths’.

One emergent behaviour-related concept arising from architecture and planning which has also found application in human-computer interaction is the idea of desire lines, desire paths or cowpaths. The usual current use of the term (often attributed, although apparently in error, to Bachelard’s The Poetics of Space (1964)) is to describe paths worn by pedestrians across spaces such as parks, between buildings or to avoid obstacles—“the foot-worn paths that sometimes appear in a landscape over time” (Mathes, 2004) and which become self-reinforcing as subsequent generations of pedestrians follow what becomes an obvious path. Throgmorton & Eckstein (2000) also discuss Chicago transportation engineers’ use of ‘desire lines’ to describe maps of straight-line origin-to-destination journeys across the city, in the process revealing assumptions about the public’s ‘desire’ to undertake these journeys. In either sense, desire lines (along with use-marks (Burns, 2007)) could perhaps, using economic terminology, be seen as a form of revealed user preference (Beshears et al, 2008) or at least revealed choice, with a substantial normative quality.

Architecture, urbanism, design and behaviour: a brief review, Dan Lockton, Sep 2011

Or see this very concrete example from UC Berkeley at peterme.com.

Desire path

We usually only see the winners. The losers tend to disappear from the record. Which is why all the fund managers in the papers seem to be giving great returns, or starting the next Whatsapp or Instagram seems like such a sure fire way to get rich. We don’t see all the funds, apps and entrepreneurs who never made it.

Survivorship bias

Cheat sheet for Crossing the Chasm by Geoffrey Moore

Understanding the Chasm

Knowing a little of the fundamentals really helps you appreciate why people always create such giant PowerPoint files all the time by mistake (hint: the standard screen capture pastes as a bitmap) and why images go grainy on the Internet or load really slow.

Understanding gifs, bitmaps and jpegs

One of the biggest benefits of digital music. Now you don’t have to listen to that rubbish one on the album. Don’t be shy.

Delete tracks you don’t like

You will recognise this when you have spent 40 minutes off and on trying to do something online when you could have been spending your time happily and productively doing something else.

Bad internet is worse than no internet

They are apparently there to help you see the keys to make it easier to type. If you can type already, fold them away — it’s better for your wrists to have no bend.

Fold away keyboard feet

You can see this trend in most technology products. Increasing subtleties and functions are added improving what a product can do. At some point, the complexity is sufficient to force us to focus efforts on simplification (or the benefit great enough that a simpler technology will take over) - while maintaining functionality. Classic menus migrating to context-sensitive menus; the original NES controller, to the xbox controller to Wii and Kinect control, Yahoo’s list-the-web, to Google’s search the web, multiple glasses to photochromic glasses, and so on.

I believe this observation is from Edward De Bono, but I learned it from Darrell Mann. I keep finding it helpful.

Things get more complex before they get simple

A nifty technique for making fonts appear smoother when viewed on a screen rendering pixels.

Anti-aliasing

The combination of aperture, shutter speed, and ISO setting controls the effect you get in your photograph. Ultimately it depends on the shot you want, and in any situation you someone may want to use a different combination than you, but knowing the basics helps. Now go read the manual and experiment with some of those extra buttons on your DSLR.

Shameless plug if you have a moment: Some of my photos on Flickr

Putting it all together: Exposure

The clever folks — Willard S. Boyle and George E. Smith — who invented the CCD sensor, the basis of what enables modern digital cameras to capture light and record a photograph were awarded the Nobel prize for their troubles. And the silver halide film Kodak were famous for is equally remarkable.

Understanding ISO

The length of time the shutter is open, and therefore the light can reach the sensor.

Understanding shutter speed

A little mini-series and a little challenge for me to try and condense the interplay of the key aspects of control for photography into a few short sketches (I thought about doing this much earlier, but kept kicking it down the line). Please let me know in the following ones if it helped. Though the only way really, is to get out there, play with the settings, take some pictures and learn.

One of the biggest benefits of digital photography has been the narrowing of the feedback loop between taking a photo and seeing the result. Imagine taking some long exposure night sky shots on the perfect evening after many days hiking only to find, a week or so later, that your aperture, shutter speed, ISO combo was all out of whack. But what did you do wrong? And would you remember how to correct it next time you were up there. Now you can take, test, edit, test, learn. Any time the feedback cycle narrows between doing and learning expect big changes.

Understanding aperture

Which, remarkably, still does not mean they are secure.

There are 2.2 trillion combinations of an 8 character password

Hi, I’m Jono, and I think, where possible, it’s important to be you on the Internet just as it is in real life. Perspective from Jaron Lanier. Masks and hoods insight from Philip Zimbardo’s Psychology of Evil, TED talk.

Be real on the internets

It still takes me a moment to process, but Ryan, for example, is much closer to S, than it is the beginning of R. Consider starting at the next letter for some searches.

Consider starting at the next letter (when scanning address books)

I love the idea that the computer just disappears backwards into the plug. Neal Moore first mentioned this to me. In the Theory of Inventive Problem Solving there’s an idea that all functions will eventually be subsumed by the system above it. Assuming that we will always need some sort of power it makes sense that the computer will disappear into there at some point. The iMac was essentially a jump where the computer disappeared into the screen. For this reason I’ve often thought that floors, walls and ceilings should be given more thought than they are. When everything else has changed, I reckon they will still be around. I wouldn’t mind if our dinner table disappeared into the floor once we were done with it for example.

Plug computing

The realisation originally came to me when I saw, pinned outside a Professor’s door, an entire sheet of plain letter paper with a single line quote at the top. The standards are driving the system. About time we got more flexible.

If we plumbed in printers

OK, so this seems like the most complex yet, but I find myself doing this small and rapid series of key strokes many times a day and it saves a whole lot of fiddling.

Update: Several people have helpfully pointed out to me that you can do this better and more easily simply with Control + shift + v on PC and Command + Alt + Shift + V on Mac. More time saved!

Remove text formatting

Not enough people understand those tricky level diagrams. Generally, move the white and black points to the edge of the data to get the most range out of the data in your photo.

Adjust a photo’s levels to maximise your data

Get to know your tech

It still amazes me how few people know this most handy of tips.

Sketchplanations tagged with tech