Is Caffeine a Cognitive Enhancer? (PDF) — Two general mechanisms may account for most of the observed effects of caffeine on performance: (1) an indirect, non-specific ‘arousal’ or ‘processing resources’ factor, presumably explaining why the effects of caffeine are generally most pronounced when task performance is sustained or degraded under suboptimal conditions; and (2) a more direct and specific ‘perceptual-motor’ speed or efficiency factor that may explain why, under optimal conditions, some aspects of human performance and information processing, in particular those related to sensation, perception, motor preparation, and execution, are more sensitive to caffeine effects than those related to cognition, memory, and learning. See also Smith 2005‘s caffeine led to a more positive mood and improved performance on a number of tasks. Different effects of caffeine were seen depending on the person’s level of arousal. Linear effects of caffeine dose were also observed. This is evidence against the argument that behavioral changes due to caffeine are merely the reversal of negative effects of a long period of caffeine abstinence. (via cogsci.stackexchange.com)
On Stars and Thinking Things Through (Courtney Johnston) — Matt (to my eyes, anyway) doesn’t have a singular ‘thing’: he has this kind of spangly web of interests and skills that coalesces around a line of enquiry and results in the making or doing of a thing, and these things in turn become part of that web and generate further experiments and thinking. Seconded.
Human-like Robot — and just like a real woman, the first paragraphs about the robot focus on soft skin and flowing brunette hair not how well she does her job. Progress!
MIT Faculty Search — two open gigs at MIT, one around climate change and one “undefined.” Great job ad.
Scalability at What Cost? — evaluation of these systems, especially in the academic context, is lacking. Folks have gotten all wound-up about scalability, despite the fact that scalability is just a means to an end (performance, capacity). When we actually look at performance, the benefits the scalable systems bring start to look much more sketchy. We’d like that to change.
BERG Closing — may open source their Little Printer server and IoT middleware. A shame, as Warren Ellis says, because they pulled bits of the future into the present. They were optimistic, not dystopic. I have a feeling BERG grads are going to be like BBC grads, where a certain crop from ~2003 or so went on to be influential at many different places. Dispersing dandelions of delight.
Here Today, Gone Tomorrow — beating our minds’ misweighting of future events. This: When being invited to do things months in advance, the diary usually looks pretty clear and it’s tempting to say “yes”. But whenever a new invitation arrives, ask yourself not, “should I accept the invitation in March?” but, “would I accept the invitation if it was for this week?” (via BoingBoing)
Weave — build a network of Docker containers running on different hosts. Weave can traverse firewalls and operate in partially connected networks. Traffic can be encrypted, allowing hosts to be connected across an untrusted network. With weave you can easily construct applications consisting of multiple containers, running anywhere.
How Apple Pay Works And Why It Matters — for some reason this was the right level of explanation for me. Hope it helps. The end result is a token that can be used across merchants and both online (In-App) and offline (NFC, In-Person). Disaggregate and micropay for ALL THE THINGS.