It took maybe 30 minutes to upgrade from WordPress 2.2 to 2.6, including time to revisit my notes on how I’ve done it before and to scan the official install/upgrade notes. But then it took a couple of hours to figure out why categories were gone and how to fix it. Long story short, I had to manually build the wp_terms table rows based on the old wp_categories rows. The SQL given in a forum note, lost categories after 2.
“It ought to be plain
how little you gain
by getting excited
and vexed.
You’ll always be late
for the previous train,
and always in time
for the next.”
-Piet Hein
A Times Online interview with Nicholas Taleb includes this one-paragraph bit of investment advice:
[T]he good investment strategy is to put 90% of your money in the safest possible government securities and the remaining 10% in a large number of high-risk ventures. This insulates you from bad black swans and exposes you to the possibility of good ones. Your smallest investment could go “convex” – explode – and make you rich.
The spacing effect: it’s possible to dramatically improve learning by correctly spacing practice sessions. The idea is to rehearse (restudy) when the likelihood of recall drops to certain point. Repeating this flattens the “forgetting curve” (likelihood of successfull recall over time).
Long-term memory, the Bjorks said, can be characterized by two components, which they named retrieval strength and storage strength. Retrieval strength measures how likely you are to recall something right now, how close it is to the surface of your mind.
Nicholas Humphrey writes about Questioning Consciousness and concludes with this. Concerning the purpose of consciousness, given that it seems not to be essential to anything we do (according to him), he says:
I think the plain and simple fact is that consciousness—on various levels—makes life more worth living.
We like being phenomenally conscious. We like the world in which we’re phenomenally conscious. We like ourselves for being phenomenally conscious. And the resulting joie de vivre, the enchantment with the world we live in, and the enhanced sense of our own metaphysical importance have, in the course of evolutionary history, turned our lives around.
Here is some good stuff from the closing section of the Mindsets book by Carol Dweck:
“When people change to a growth mindset, they change from a judge-and-be-judged framework to a learn-and-help-learn framework.
Every day presents you with ways to grow and to help the people you care about grow. How can you remember to look for these chances? Each morning, as you contemplate the day in front of you, try to ask yourself these questions.
The following appears in a blog entry about the bear market (emphasis mine):
“People tend to ignore, reject or minimize any information that conflicts with their positive self-image,” their preconceived ideas and their ideological convictions, says John Nofsinger, Washington State professor of behavioral finance, in “Investment Madness.”
“The avoidance of cognitive dissonance can affect the decision-making processes in two ways. First, you can fail to make important decisions because it’s too uncomfortable to contemplate the situation,” Nofsinger says.
A recent article in Scientific American Mind, The Secret to Raising Smart Kids, discusses research suggesting that it is better to praise kids for their effort than to praise them for being smart. Here are some quotes:
Hint: Don’t tell your kids that they are [smart]. More than three decades of research shows that a focus on effort—not on intelligence or ability—is key to success in school and in life
Robert Shiller considers causes of the recent housing boom, and possible bust.
In this paper, I will consider, from a broad perspective, the possible causes of this boom, with particular attention to speculative thinking among investors. I will argue that a significant factor in this boom was a widespread perception that houses are a great investment, and the boom psychology that helped spread such thinking. In arguing this, I will make some reliance on the emerging field of behavioral economics.
Spinoza was a thoroughgoing determinist who held that absolutely everything that happens occurs through the operation of necessity. For him, even human behaviour is fully determined, with freedom being our capacity to know we are determined and to understand why we act as we do. So freedom is not the possibility to say “no” to what happens to us but the possibility to say “yes” and fully understand why things should necessarily happen that way.
