cognition   11849

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What does it mean to understand computing?
If we want students to understand computing, we should foster development of their mental models of a notional machine

Key takeaways:
- Most people cannot develop a robust mental model of a notional machine without a language.
- We need to discuss both structure and function in our computing classes.
pedagogy  compsci  teaching  hb  cognition  by:guzdial 
18 hours ago by kakkoii
Don’t trust anyone over 70 • Foreign Policy
Gautam Mukunda:
<p>Even beyond the immediate effects of illness, aging can have pronounced effects on personality. Put simply, in general people really don’t mellow with age. Instead, Jerrold Post and Bert Park have shown that they tend to become exaggerated versions — almost caricatures — of themselves, with their normal tendencies and patterns becoming intensified. This tendency is particularly likely to affect foreign policy. The aggressive can become belligerent, the passive, apathetic. Tendencies that would otherwise have fallen within an acceptable range can suddenly become problematic — a shift that, when it happens to a head of government, is particularly likely to upset foreign policy.

Finally, and perhaps most troubling, are aging’s effects on cognition. Some of these are well known. The advance of age tends to weaken recall, particularly of recent events, for example. Less commonly acknowledged, but perhaps more important, are aging’s effects on intelligence. Cognitive abilities can be split into two categories: crystallized and fluid. Crystallized intelligence is what we use to accomplish routine tasks. It increases over the course of a person’s life, peaking in the 60s. Fluid intelligence, on the other hand, is the ability to solve new problems. It seems to begin declining at 20. This asymmetric deterioration is perhaps the most worrying feature of aging. The increase in crystallized intelligence can serve to camouflage any real decline that might be occurring. Most situations, after all, are routine, and so a leader may seem entirely unaffected by age. Furthermore, governments are likely to have considerable institutional ability to handle such situations, which will tend to compensate for a leader’s compromised skills.

The most critical and dangerous situations, on the other hand, are novel ones — situations that the normal functioning of governmental institutions is least able to handle and that therefore require peak performance from a leader. This is precisely when an age-related decline in fluid intelligence is likely to have its most severe effects. So age-related decline may be most consequential at the worst possible moment.

Given the potential dangers, the burden of proof should be on aging leaders to justify their continued hold on power, not on those who challenge them.</p>

Donald Trump will be 72 in June. (Vladimir Putin is 66 in October; Xi Jinping is 65 in June; Angela Merkel, Germany's chancellor since 2005, is 64 in July; Theresa May is 61; Justin Trudeau turned 46 in December; Kim Jong-un is 34, or 35, or 36.)
age  cognition 
3 days ago by charlesarthur
Resulting Fallacy - This Is the Most Important Fallacy You’ve Never Heard Of
"There’s this word that we use in poker: “resulting.” It’s a really important word. You can think about it as creating too tight a relationship between the quality of the outcome and the quality of the decision. You can’t use outcome quality as a perfect signal of decision quality, not with a small sample size anyway. "
cognition  psychology  biases 
6 days ago by limbic
Hello!!! My name is . I am a PhD student at Yale studying how shapes in . I…
macaques  ecology  cognition  from twitter_favs
7 days ago by ebuchholtz
Home - The Illusions Index
"Occasionally our senses let us down, and we fail to perceive the world accurately. The resulting illusions give us great insight into how our senses work."
psychology  evolution  cognition 
10 days ago by danny.hope
UX & Psychology go hand in hand — Introduction to human attention
As a UX designer, we design digital products that people interact with. When we are designing these products, we spend a lot of time on different research methods to understand the behavior, habits…
design  ux  cognition 
10 days ago by lenards

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