Archive for the 'General' Category

Ideas for improving writing

Posted by David on March 1st, 2009

George Orwell’s essay on the use of the English language encouraged me to think about how to improve my writing by applying lessons from neuroscience and  cognitive science.

One idea is to optimize cognitive load.  By cognitive load, I mean the effort it takes to understand the ideas I want to convey.   Effective writing needs to maximize the density of ideas being presented, without exceeding the rate at which the reader can process them.  Because we can only think about a few things at the same time, we need frequent breaks in text to process information before moving on.  If I make my writing easier to understand, I can tell the reader more with the same number of words.

Some ideas for optimizing cognitive load:

  • Minimize word length. Long and unusual words take longer to identify, so I can improve my writing by using smaller and more familiar words.
  • Ditto for sentence size and paragraph length.
  • Shorter words and different-sounding words in the same sentence are easier to remember.
  • Analogies and figures of speech require an unnecessary cross-reference, so they should be minimized.
  • Repetition is crucial to forming long-term memory.  You can improve memorization by using spaced repetition – “a learning technique in which increasing intervals of time are used between subsequent reviews.”
  • Improve the retention, relevance, and utility of writing with frequent examples and references to the reader’s existing ideas and beliefs.
  • When appropriate, leave the outline in the final text, and use thesis statements rather than subjects.  For example, see my one minute cases.

Some things that disrupt cognitive efficiency:

  • “Cue words” are abstract concepts that can trigger emotional responses that blocks rational analysis. For example, President Obama’s speeches are full of words like “democracy”, “faith”, “reform”, “challenges”, and “destiny.” (It is OK to use these words when they are necessary to convey an idea and placed in an unambiguous context.)
  • Group affiliations are another kind of trigger word – when a reader identifies the author as belonging to either his or an adverse group, it triggers a distracting emotional response.
  • Logical fallacies.  Even if the logical flaw is not detected, it adds to the cognitive load without adding to the readers knowledge.  If detected later, it erodes the credibility of the entire argument.

One criticism of this kind of writing is that it has limited emotional appeal.  Emotional impact is important – it tells the brain make ideas more memorable.  I wonder if anyone has systematically thought about how to add emotional impact to writing.  What kinds of emotional appeals rely on logical fallacies, and what kinds best reinforce the lesson being taught?

View accompanying slides

The media, politicians, and even many businessmen have blamed today’s financial meltdown on capitalism. But in this talk, John Allison—the longest-tenured CEO of a top-25 financial services company—argues that this crisis is a legacy of the government’s anti-capitalist policies.

Mr. Allison uses his unique inside view of the financial services industry to show how massive government intervention into the U.S. economy—from the creation of the Federal Reserve in 1913 to a reckless crusade to encourage home-ownership—laid the groundwork for an unsustainable real estate boom. And he shows how the government’s response to the inevitable bust—a frenzied series of bailouts, nationalizations, and “stimulus” efforts—is only making things worse.

Finally, Mr. Allison explains the underlying philosophical reasons for the crisis, and discusses the immediate and long-term solutions. He shows that capitalism, far from being the cause of today’s crisis, is its only cure.

Bjorn Lomborg: Our priorities for saving the world

Posted by David on February 13th, 2009

The vast majority of wealthy people in the developed world prefer to doom billions of people to death and poverty than to doubt the environmentalist/socialist propaganda taught in government schools.

Are patents stifling innovation in mobile devices?

Posted by David on January 28th, 2009

In 2007, I wrote why software patents are not a good idea.  It’s easy to find examples of patent abuse but its not often to find a company that uses patents that stifle a whole industry.  Such may be the case with the Apple iPhone.

I purchased an iPhone shortly after it came out, because I recognized that it was a revolutionary device.  It was not a case of superior specifications, as many devices have better hardware.  It didn’t even run on the latest 3G network until the second generation.  Rather, it was a superior design, which featured an intuitive user interface that did not try to compete on the number of features but on usability.  Apple fully deserves the billions of dollars it has made and will go on to make from its device.

Yet something curious has happened. When Apple introduced the iPhone, those who recognized its revolutionary potential expected the innovations and design concepts it introduced to percolate to the rest of the industry.  To an extent, that is happening, but key iPhone technologies -a capacitive touchscreen with multi-touch, a 3-axis accelerometer, proximity sensors, graphics acceleration integrated integrated into the UI, and a number of other key innovations have not been found in competing products.  Part of the reason for this has to do with the particular culture and expertise found at Apple, but its indisputable than the 200+ patents covering the iPhone have gone a long way to discouraging competitors, who offer alternatives lacking key features – until now.

Palm, the company who created the first popular PDA is coming out with the Palm Pre, the first device to brazenly infringe many of the key iPhone patents.  Apple is already making threatening gestures, so an apocalyptic legal battle is almost certain.  Palm is the first company to go against Apple head on because  its status as the one-time leader in the PDA and mobile phone market makes it the only company capable of challenging Apple’s leadership.  While the Palm Pre clearly borrows ideas from the iPhone, the iPhone itself uses many of the innovations first patented by Palm as early as 1996.  Today Palm is a marginalized has-been for whom the Pre is a desperate gamble to save to company, but it still has the patent portfolio of a market leader.

The question of who is the bigger infringer in this battle is besides the point.  The issue is that the patent system is limiting innovation to large companies who have established sufficiently large patent portfolios to pose a credible threat of retaliatory patent lawsuits.  The best that new competitors can hope for in this environment is to be aquired by the giants or to establish their own patent portfolios – rather than create products than people want to use.

My Mac blog

Posted by David on January 16th, 2009

Introducing DotMac: I got a MacBook laptop as a personal birthday present in October, and started a blog for Mac users with tutorials and programming tips .

Popular posts so far: using a Mac with a Windows pc and organizing your music library.

I’m getting hitched!

Posted by David on January 16th, 2009

According to the FeedBurner counter on the left, I have 105 regular readers, so for those who haven’t heard elsewhere, I proposed to Sarah, my lovely girlfriend of two and a half years shortly after midnight, December 31st.  Sarah and I met at my Examined Life philosophy meetup group.  We plan to wed sometime this summer.

 

engagement

My random thoughts now on Facebook

Posted by David on January 16th, 2009

For the last month or so, I’ve been posting a “thought of the day” to my facebook profile as a “quickie” form of activism.  Some of the “thoughts” refer to current events, while others are more philosophical.  I’ve decided to collect the more quotable ones on my wiki.  I’m going to try to continue posting my thoughts on a daily basis.

Shocking!

Posted by David on December 18th, 2008

Despite an “impartial” and “transparent” process, it turns out that there is a high correlation between Congressional power and science grants.  Must be a “a case of correlation but not causation” one commentator writes.  There’s no way that politics could corrupt the scientific process (as long as Democrats are in power, at least.)

Warning regarding the economy

Posted by David on December 16th, 2008

I just sent my family the following email:

Hi folks,

If you’ve been following the news, you may have heard that:

  • The Federal Reserve just cut the overnight loan rate to .25 percent.  Gold prices immediately jumped to $847/oz.  (Last week, I bought gold at $775).  We haven’t seen rates this low for over 50 years.
  • The government has given away over 8,000,000,000,000 dollars of “free” money in the last three months.
  • In the last 5 years, the dollar has lost more than half its value relative to gold.

All evidence points towards the fact that the U.S. government is rapidly devaluing your savings, and a currency collapse followed by hyperinflation like we recently saw in Iceland is all but inevitable.  If you don’t want to lose your savings and investments in the coming economic collapse, you need to take action NOW.

Here is what you should be doing:

  • Buy some gold and keep it in a safe place. I suggest http://www.kitco.com/ or eBay  – you can get a good deal on 1oz gold bars. (Buy plain gold bullion, not the “collectible” stuff.)
  • Don’t pay anything above the minimum payment on any loans or mortgages you have.
  • It’s a good time to get a new loan.  I would not suggest taking on new mortgages, as I expect housing prices to collapse further.
  • The stock market may lose up to 50% of its value in the next year.  Still, investing in the S&P 500 is a good hedge against inflation.  You can also invest in metal & mining index funds.
  • Stock up on supplies, especially durable goods.
  • Minimize your holdings of inflation-prone assets, like cash, bonds, and government securities.

When you’re done, you should have a minimum of cash and cash-like investments, and plenty of material assets you can sell or barter in an emergency.  Also, consider getting a firearm for self-defense – expect crime to rise dramatically when the economy collapses.

You’ve been warned.

Some reflections on leadership

Posted by David on November 25th, 2008

Yesterday I read Clay Shirky’s essay “A Group Is Its Own Worst Enemy” from Joel Spolsky’s book “The Best Software Writing I.” Clay makes some great observations on group dynamics, but that’s not my point.

What struck me is how utterly useless the leadership training seminars I’ve attended were. I learned more from a single essay than a lifetime of worthless and sometimes counter-productive seminars. From the Boy Scouts to assorted honor societies, to leadership training events in college, nowhere did I learn the basics of conflict resolution, group psychology, rule-making heuristics, and project management. Typical leadership training usually consists of variations of “trust” exercises – as if trusting people actually makes them trustworthy. (Teaching people to trust others blindly actually results in leaders too jaded by failure to trust others or to train them to rise to the occasion.)

I think the problem may be that that leadership is treated as an intuitive/emotional process that must be learned by repetition and inspiration rather than a scientific analysis of the principles of group dynamics. The worst school is the one that views talent as genetic, as it conspires to actively prevent improvement through study and hard work.

I’ve never thought of myself as a great leader, but I’ve learned some basic principles of leadership and group dynamics through trial and error:

  • Don’t expect order to arise naturally or try to organize roles anew for each effort: effective groups have commonly understood and accepted roles (officers) and procedures (Robert’s Rules of Order, etc)
  • Delegate responsibility whenever possible, but monitor progress and reassign as necessary (“trust, but verify”)
  • Besides carrying out the group’s goals, training a replacement should be a leader’s #1 job.
  • Never make enemies by accident. Attempt to resolve disputes privately first, and failing that, diplomatically. Beware of interpersonal conflicts and sexual (“macho”) dynamics masquerading as ideological differences.
  • Avoid making enemies, or dwelling on the competition. Burning effigies will build group identity, but will destroy objectivity and shift resources and the agenda away from the group’s original purpose. (An especially common mistake is to make enemies of ex-members, as they are often the most capable of inflicting harm.)
  • Standards for membership should be strict and explicit enough to exclude anyone who does not share the group’s goals or values. Any stricter or vaguer, and they will be hijacked to exclude people due to interpersonal conflicts.
  • Make yourself available for private feedback (initiating it yourself if necessary) and take suggestions seriously.
  • Lead by example. This one they do teach, but rarely do they explain the implication: A leader must work harder and with more dedication than than anyone else, because members judge their contribution by the most visible member. If you ask someone to scrub the toilets, you better show how to clean one spotless first.