TweetFollow Us on Twitter

September 95 - The Veteran Neophyte: A Feel for the Thing

The Veteran Neophyte: A Feel for the Thing

Dave Johnson

I used to think there was no room for mystery in the world of computers. I didn't think there was any use for fudge factors or rules of thumb or hunches in the clean, exact, hermetically sealed bubble of logic we all spend so much time diddling and poking. That stuff belongs to "real world" engineering, not software engineering, right? Software is always bounded and orderly, always understood completely from top to bottom, with no dangling ends, no frayed edges, and no baling wire and duct tape holding things together. There's never a need for vague, hand-waving explanations of how it all works, because we know how it works.

That's what I used to think. I'm not so sure anymore.

Ultimately, of course, the operation of computers is deterministic and absolutely predictable. There's guaranteed to be a complete explanation for any event on the computer; the search for an answer will always find one. It's like playing Go Fish with a deck of cards that contains only threes -- "Got any threes?" "Yep." "Got any threes?" "Yep." "Got any threes?" "Yep." The answer itself, of course, may be convoluted and difficult, and is often way too much trouble to actually track down ("Have you tried rebooting?"), but it's always there. The world inside computers has a definite, impermeable bottom, like a swimming pool.

The real world, on the other hand, is more like being out in the middle of the ocean: the bottom is nowhere in sight, and in fact is so far away that it may as well not exist at all. Trying to completely explain things in the real world is generally an exercise in futility, though one that humans seem to have a capacious appetite for (that's what science is all about, after all). The real world is so vast and complex that our explanations are never really complete. The answers always lead to more questions, and the edges of our knowledge remain frayed and ragged and crumbling, even though the center may have a seemingly solid, well supported integrity.

The thing that got me thinking about all this is boomerangs. I've been learning to throw boomerangs lately, and it's extremely satisfying -- and somehow endlessly novel -- to throw something away from yourself as hard as you can, and have it return several seconds later, hovering gently down into your waiting hands like a bird coming home to roost. (Such a perfect flight, of course, is a rare thing for a novice like me. More often, if the boomerang comes anywhere near me, it's slicing past at a frightening rate of speed while I cringe, covering my head.) While I've been learning to throw boomerangs, I've also been trying to watch myself learn to throw boomerangs -- sort of meta-boomeranging -- and I noticed that a complete explanation of what was happening was not only absent, but completely unnecessary: I don't need to know how boomerangs work to learn to throw them well.

Boomerang throwing is one of those real-world activities -- there are many of them -- that are governed by rules of thumb, by approximation and estimation, and by "feel." There are lots of variables involved in producing a good boomerang flight, and they're all sort of woven together, interconnected and interdependent. The direction of the throw, the angle of the boomerang as it leaves your hand, the forward power of the throw, and the amount of spin all contribute to the flight characteristics, but the way they combine and interact is complex and nonobvious. How's a poor, bewildered boomerang neophyte to make any sense of it all?

Well, the only way to learn to throw boomerangs is to get yourself a decent boomerang (very important!), read a little about it or get a lesson from someone, and then just get out there and start throwing. You need to experience it; you need to feel the smooth, flat weight of the thing, notice the way it slices the wind as it leaves your hand, and watch as it spins and swoops. Every throw you make adds to a growing store of knowledge about boomerang behavior. Slowly, you begin to sense the structure of the rules that govern the flight of the boomerang, to get a feel for it, to gain some control. But no matter how long you work at it, there's always more you can learn about boomerangs. Boomerang throwing, like most things in the real world, has no bottom.

But even though things in the real world are webby, tangled, and complex, with no real bottom and no real center, and even though complete understanding is out of our reach, that doesn't stop us from getting things done. Even though we may not understand exactly what's going on when we throw a boomerang, we can learn to throw them anyway, and can actually learn to throw them with incredible skill. Scientists don't have a complete understanding of fluid mechanics, but we can still design hydraulic lifts that lift, toilets that flush, and airplanes that fly.

Though it seemed profound when I first thought of it that way, it really isn't anything remarkable at all. It's the stuff our everyday sensory world is made of. It's our standard, animal mode of operation. We depend heavily on trial and error, on finding and keeping strategies that work. We invent myths and superstitions to explain things we don't understand, we guess, we fake it, we operate by feel. And it works just fine.

But we don't need that sort of thing in the clean, deterministic world of computers, right? If we know the answer is within our reach, then why gloss over it? There's one very good reason: it's gotten to the point where it's often really hard to reach the answer. Computers have become so complex that finding the real answer is often a Herculean feat requiring great effort and stamina. The things that we're "growing" in the machine are getting very deep and webby and complex, just like things in the real world. That nice smooth bottom we all know and love is getting pretty remote and hard to see, and in fact trying to keep it in sight often holds us back.

The truth is, we need fakery, or myth, or something similar, to avoid being hopelessly mired in complexity, and to let us feel cozy even in the face of something too deep to comfortably understand. The idea that an icon in the Finder, a document window in an application, and a file on the hard disk are all "the same thing" is a fiction, an illusion created from smoke and mirrors, and one that users don't even think about anymore (unless, of course, an application screws up the illusion; see Mark Linton's article in this issue for some code to help you avoid such a faux pas). But it's precisely that kind of myth and abstraction that lets people ignore all the underlying complexity and just go about their everyday business. Without that kind of trickery most people would be lost.

Humans have a deep need for some sort of explanation, and we'll often ignore aspects of a situation, or even make stuff up out of thin air, if it helps us to find an "answer." Remember the frictionless inclined planes and perfect vacuums of college physics? Without that kind of glossing over of details, we'd have been helpless. (A college housemate of mine and I used to joke about running a college physics stockroom: boxes of frictionless, massless pulleys on the shelves; gallon jugs of zero-viscosity liquid at our feet; coils of infinite and semi-infinite wires hanging neatly on the pegboard wall. Those wires have no thickness or mass, thank goodness, or the storage requirements would be prohibitive.) This need for explanation is what has led us to science, and to religion, and to superstition. These are not the same thing, of course, but they can all serve the same purpose: a soothing, protective balm on the raw edges of our incomplete knowledge. They give us a ground to stand on, a rail to hold on to, as we totter along in the darkness, going who knows where, hoping the batteries will hold out long enough to get an answer.

Now that I think about it, I'm happiest with a generous helping of myth and fiction stirred into my computing. It can help make the computer -- which, let's face it, is essentially a gritty, sharp-edged, and hostile machine -- feel more rounded and friendly. It can provide a useful disguise, like a plastic nose and glasses on something seething and alien, making it recognizable, familiar, even comforting and amusing. If it's done well, it can even let me learn to use a computer in much the same way I learn to throw a boomerang: by picking it up and trying it, by mucking around and getting a feel for it, by discovery.

Maybe best of all, it lets computers keep a little of their mystery. The mystery and magic of the Macintosh are why many of us are programmers, after all. Mysterious things, things that don't have clean and obvious boundaries, are inevitably more interesting and more fun. There's no denying that computers have a dull, featureless, dreary bottom. But in the other direction there seems to be no boundary; the top, if there is one, is as far away as the sky. So yes, I think there's plenty of room for mystery in the world of computing. Plenty of room indeed.


    RECOMMENDED READING

    • Many Happy Returns: The Art and Sport of Boomeranging by Benjamin Ruhe (Viking, 1977).

    • How to Hide Almost Anything by David Krotz (William Morrow and Company, 1975).

DAVE JOHNSON has an ever-lengthening list of life goals, things that he'd like to accomplish or experience before leaving this mortal coil. Some recent additions include making marshmallows from scratch, milking a cow, and hugging a full-grown bear. (Is bear breath better than dog breath? There's only one way to find out!) If you have a cow or bear Dave could visit, please let him know.*

Thanks to Lorraine Anderson, Jeff Barbose, Brian Hamlin, Mark "The Red" Harlan, Bo3b Johnson, Lisa Jongewaard, and Ned van Alstyne for their always enlightening review comments.*

Dave welcomes feedback on his musings. He can be reached at JOHNSON.DK on AppleLink, dkj@apple.com on the Internet, or 75300,715 on CompuServe.*

 
AAPL
$106.98
Apple Inc.
-0.36
MSFT
$46.05
Microsoft Corpora
-0.57
GOOG
$550.31
Google Inc.
+0.98

MacTech Search:
Community Search:

Software Updates via MacUpdate

Sandvox 2.9.2 - Easily build eye-catchin...
Sandvox is for Mac users who want to create a professional looking website quickly and easily. With Sandvox, you don't need to be a Web genius to build a stylish, feature-rich, standards-compliant... Read more
Cocktail 8.0.1 - General maintenance and...
Cocktail is a general purpose utility for OS X that lets you clean, repair and optimize your Mac. It is a powerful digital toolset that helps hundreds of thousands of Mac users around the world get... Read more
LibreOffice 4.3.3.2 - Free Open Source o...
LibreOffice is an office suite (word processor, spreadsheet, presentations, drawing tool) compatible with other major office suites. The Document Foundation is coordinating development and... Read more
VMware Fusion 7.0.1 - Run Windows apps a...
VMware Fusion allows you to create a Virtual Machine on your Mac and run Windows (including Windows 8.1) and Windows software on your Mac. Run your favorite Windows applications alongside Mac... Read more
OneNote 15.3.2 - Free digital notebook f...
OneNote is your very own digital notebook. With OneNote, you can capture that flash of genius, that moment of inspiration, or that list of errands that's too important to forget. Whether you're at... Read more
Audio Hijack Pro 2.11.4 - Record and enh...
Audio Hijack Pro drastically changes the way you use audio on your computer, giving you the freedom to listen to audio when you want and how you want. Record and enhance any audio with Audio Hijack... Read more
Iridient Developer 3.0.0 beta 3 - Powerf...
Iridient Developer (was RAW Developer) is a powerful image conversion application designed specifically for OS X. Iridient Developer gives advanced photographers total control over every aspect of... Read more
TextWrangler 4.5.11 - Free general purpo...
TextWrangler is the powerful general purpose text editor, and Unix and server administrator's tool. Oh, and also, like the best things in life, it's free. TextWrangler is the "little brother" to... Read more
NeoFinder 6.6 - Catalog your external me...
NeoFinder (formerly CDFinder) rapidly organizes your data, either on external or internal disks, or any other volumes. It catalogs all your data, so you stay in control of your data archive or disk... Read more
Chromium 38.0.2125.111 - Fast and stable...
Chromium is an open-source browser project that aims to build a safer, faster, and more stable way for all Internet users to experience the web. FreeSMUG-Free OpenSource Mac User Group build is... Read more

Latest Forum Discussions

See All

Night Sky Pro™ (Reference)
Night Sky Pro™ 3.0.1 Device: iOS Universal Category: Reference Price: $2.99, Version: 3.0.1 (iTunes) Description: Night Sky Pro™Wonder No More™ Night Sky Pro™ is the ultimate stargazing experience. From the creators of the original... | Read more »
Audio Defence : Zombie Arena (Games)
Audio Defence : Zombie Arena 1.0 Device: iOS Universal Category: Games Price: $4.99, Version: 1.0 (iTunes) Description: A zombie shooter audio game. Made from gut-wrenching 3D binaural sound, for a new kind of weird immersion. You... | Read more »
RPG Asdivine Hearts (Games)
RPG Asdivine Hearts 1.1.0 Device: iOS Universal Category: Games Price: $3.99, Version: 1.1.0 (iTunes) Description: SPECIAL PRICE50% OFF (USD 7.99 -> USD 3.99)!!! Travel alongside four companions and a cat in the adventure of a... | Read more »
Haunt the House: Terrortown (Games)
Haunt the House: Terrortown 1.0.1 Device: iOS Universal Category: Games Price: $.99, Version: 1.0.1 (iTunes) Description: 66.6% OFF! SPECIAL SPOOKY HALLOWEEN LAUNCH PRICE! 66.6% OFF! ...What was that sound? Is somebody there? | Read more »
SAS: Zombie Assault 4 Review
SAS: Zombie Assault 4 Review By Jennifer Allen on October 30th, 2014 Our Rating: :: FLAWED SHOOTERUniversal App - Designed for iPhone and iPad Shoot everything that moves in this fun, if flawed, twin-stick shooter.   | Read more »
Naailde the Witch Review
Naailde the Witch Review By Amy Solomon on October 30th, 2014 Our Rating: :: PITCH-PERFECT STORYTELLINGUniversal App - Designed for iPhone and iPad Marvelous storytelling, narration, and moving illustrations make this storybook... | Read more »
1st & Goal Review
1st & Goal Review By Andrew Fisher on October 30th, 2014 Our Rating: :: FOR THE D&D LOVING QBUniversal App - Designed for iPhone and iPad 1st & Goal is a board gamer’s football game, a football fan’s board game, and... | Read more »
French Developer Pated Unveils Seashine
French Developer Pated Unveils Seashine Posted by Ellis Spice on October 30th, 2014 [ permalink ] French one-man studio Pated has unveiled Seashine, “a poetic journey into the abyss.” Players take on the role of a jellyfish strugglin | Read more »
Agents of Storm: Tips, Tricks, and Strat...
Calling all agents: Would you like to see what we thought of this rather pretty base builder? Check out our Agents of Storm review! Have you downloaded Agents of Storm, been bowled over by the graphics, and aren’t quite sure what to do next? Never... | Read more »
Any.DO 2.0 Hopes to Help Manage Producti...
Any.DO 2.0 Hopes to Help Manage Productivity Posted by Ellis Spice on October 30th, 2014 [ permalink ] iPhone App - Designed for the iPhone, compatible with the iPad | Read more »

Price Scanner via MacPrices.net

Apple Regains Momentum As Windows Stutters An...
The latest smartphone sales data from Kantar Worldpanel ComTech, for the three months to March 2014, shows Apple performing strongly in the first quarter of the year, with sales bouncing back in... Read more
Worldwide Smartphone Shipments Increase 25.2%...
New smartphone releases and an increased emphasis on emerging markets drove global smartphone shipments above 300 million units for the second consecutive quarter, according to preliminary data from... Read more
Apple now offering refurbished 2014 15-inch M...
The Apple Store is now offering Apple Certified Refurbished 2014 15″ Retina MacBook Pros for up to $400 off the cost of new models. An Apple one-year warranty is included with each model, and... Read more
Apple drops prices on refurbished 2013 Retina...
The Apple Store has dropped prices on 2013 Apple Certified Refurbished 13″ and 15″ Retina MacBook Pros, with Retina models now available starting at $999. Apple’s one-year warranty is standard, and... Read more
New 2.8GHz Mac mini on sale for $949, save $5...
Abt Electronics has the new 2.8GHz Mac mini in stock and on sale for $949.05 including free shipping. Their price is $50 off MSRP, and it’s the lowest price available for this model from any reseller... Read more
Sale! 3.7GHz Quad Core Mac Pro available for...
 B&H Photo has the 3.7GHz Quad Core Mac Pro on sale for $2649 including free shipping plus NY sales tax only. Their price is $350 off MSRP, and it’s the lowest price for this model from any... Read more
Mujjo Steps Up The Game With Refined Touchscr...
Netherlands based Mujjo have just launched their Refined Touchscreen Gloves, stepping up their game. The gloves feature a updated elegant design that takes these knitted gloves to the next level. A... Read more
Sale! Preorder the new 27-inch 5K iMac for $2...
 Abt Electronics has the new 27″ 3.5GHz 5K iMac on sale and available for preorder for $2374.05 including free shipping. Their price is $125 off MSRP, and it’s the lowest price available for this... Read more
Simplex Solutions Inc. Brings Secure Web Surf...
New York based Simplex Solutions Inc. has announced the release and immediate availability of Private Browser 1.0, its revolutionary new secure web browser developed for iPhone, iPad and iPod touch... Read more
Save up to $180 off MSRP with an Apple refurb...
The Apple Store has Apple Certified Refurbished 2014 MacBook Airs available for up to $180 off the cost of new models. An Apple one-year warranty is included with each MacBook, and shipping is free.... Read more

Jobs Board

Position Opening at *Apple* - Apple (United...
**Job Summary** Every day, business customers come to the Apple Store to discover what powerful, easy-to-use Apple products can do for them. As a Business Leader, Read more
Sr. Manager, *Apple* Deployment Programs fo...
**Job Summary** Apple is seeking candidates for a new position on the Education Content and Technology team. iPad and Mac is in the hands of millions of teachers and Read more
*Apple* Solutions Consultant (ASC) - Apple I...
…important role that the ASC serves is that of providing an excellent Apple Customer Experience. Responsibilities include: * Promoting Apple products and solutions Read more
*Apple* Solutions Consultant (ASC) - Apple I...
…important role that the ASC serves is that of providing an excellent Apple Customer Experience. Responsibilities include: * Promoting Apple products and solutions Read more
*Apple* Solutions Consultant (ASC) - Apple I...
…important role that the ASC serves is that of providing an excellent Apple Customer Experience. Responsibilities include: * Promoting Apple products and solutions Read more
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.