Monday, July 20, 2020

Design for Disassembly


Scientists develop industrial-strength adhesive which can be unstuck in magnetic field
Nov 2019, phys.org

I hate tape.

Ingestible medical devices can be broken down with light
Jan 2020, phys.org

I love things that are designed to die of natural causes instead of pretending like they're going to live forever.

AI Goggles vs Beer Goggles


Gender imbalanced datasets may affect the performance of AI pathology classification
May 2020, phys.org
This offers a very simple way to understand bias in neural networks. First, an explanation from the press article: In recent years, researchers have found that AI apps used to approve mortgage and other loan applications are biased, for example, in favor of white males. This, researchers found, was because the dataset used to train the system mostly comprised white male profiles. In this new effort, the researchers wondered if the same might be true for AI systems used to assist doctors in diagnosing patients. 
And their findings: In looking at their results, the researchers found that there was a definite bias—when the data was mostly male, the error rates for processing female profiles rose. The same was true if the ratios were reversed. They also found that over-representing one gender or the other did not confer an advantage—the error rates remained relatively stable.
Post Script
Samus was a woman.

Bio Datty


DNA-barcoded microbial spores can trace origin of objects, agricultural products
Jun 2020, phys.org

News: Synthetic microbial spores can be safely introduced onto objects and surfaces at a point of origin, such as a field or manufacturing plant, and be detected and identified months later.

Purpose: Tracing the exact origin of contaminated items, like for a food-borne illness.

Interpretation: Integrated with mass surveillance and blockchain, this is a great way to build a new kind of social network.

Speaking of Which: Data Aggregators aka Datags

Post Script: Big Data plus Big Brother

Totally Unrelated Post Script: Yesterday I heard someone say that the word Daddy has become so sexualized that he's about to start telling his kids to call him Bro instead.

Image source credit: Animal Biotelemetry by Theoni Photopoulou, 2015

On the Invisibility of Ideology

It's precisely its 'spontaneous' quality, its transparency, its 'naturalness', its refusal to be made to examine the premises on which it is founded, its resistance to change or to correction, its effect of instant recognition, and the closed circle in which it moves which makes common sense, at one and the same time, 'spontaneous', ideological and unconscious. You cannot learn, through common sense, how things are: you can only discover where they fit into the existing scheme of things. In this way, its very taken-for-grantedness is what establishess it as a medium in which its own premises and presuppositions are being rendered invisible by its apparent transparency.
-Dick Hebdige quoting Stuart Hall in Subculture: The Meaning of Style, 1979 (p11) 

Ideology has very little to do with 'consciousness'. It is profoundly unconscious...Ideology is indeed a system of representation, but in the majority of cases these representations have nothing to do with 'consciousness': they are usually images and occasionally concepts, but it is above all as structures-that they impose on the vast majority of men, not via their 'consciousness'. They are perceived-accepted-suffered cultural objects and they act functionally on men via a process that escapes them.
-Abridged, from Dick Hebdige quoting Louis Althusser in Subculture: The Meaning of Style, 1979 (p12)
Post Script:
Hindsight and Blindness, a post on the inability to see our own culture.

Thoughts on memetics and the power of physical cultural artifacts, from buildings to door handles, to program our evolution:

In memetics, the meme may be stored in the brain, in synaptic weights of networked neurons, or they may not. They are most certainly stored in the physical artifacts that make our world, the Anthroposphere.

Buildings, by their design, make us interact in a certain way, at a basic level, and one which depends on the laws of physics before anything else. We live on a two-dimensional grid, via bipedal locomotion, with an average height, weight and range of movement.

These are the base limitations from which the more complex requirements of chemistry, biology, and later psychology, sociology, anthropology are formed. The shape of a handle has encoded within its form the instructions for use, at a base level, and because we all have the same hands.

When these artifacts are combined in their totality -- buildings, tools, circuitboards and spaceships -- they set the substrate for memetic propagation.

So much of what we consider Culture, and the arena for memetic propagation, is already encoded in our anthroposphere -- that is, the physical things around us that we make and use. Trees are not part of the anthroposphere, until they become timber for building. Copper is not a part of the anthroposphere until it becomes a piece of plumbing. A language is not part of the anthroposphere until it is written down, and becomes fixed in the physical world, as in a book or engraving or the digital archive of a memory stick.

I am making an argument here, and in response to a recent binge on memetic scholarship:
Darwinizing Culture - The Status of Memetics as a Science, R Aunger ed., 2000

There is no need to look for how ideas combine and transmit and where they are stored. The ideas are manifest in the anthroposphere, and it is by using our anthroposphere, all of it and all of us all at once, that the emergent phenomena of memetic evolution occurs.

Save the studies on internet memes for the anthropologists. A rigorous study of memetics must begin with the physical. Until you can get a model based on this, Beethoven's Fifth will have to wait. But don't tell me, for example, that the evolution from the harpsichord to the piano didn't have something to do with it.

Ideology may be invisible, but it is not intangible.

Saturday, July 11, 2020

Writing Robots 2

OpenAI releases powerful text generator
June 2020, phys.org

For scale and context:
Those concerns led OpenAI in February 2019 to take the unusual step of declining to release the early version, GPT-2, citing fears potential misuse could be dangerous. 
GPT-3, about 100 times more powerful than GPT-2, has performed admirably in tests, according to the OpenAI report. It tackled reading compression exercises requiring filling in word blanks, tackling "on-the-fly reasoning," and generating compositions up to 500 words.

Partially Related Article:
Your brain shows if you are lonely or not
June 2020, phys.org
The closer participants felt to someone, the more similarly their brain represented them throughout the social brain.
I mean if this doesn't say something about identity -- You are a collective of those closest to you, not a person so much as a multi-person chimera.

Bio-Inks and Bio-Printers


Bioactive inks printed on wearable textiles can map conditions over the entire surface of the body
June 2020, phys.org

Using near-infrared light to 3-D print an ear inside the body
June 2020, phys.org

Cyclist and driver middle-finger wars - Enter the emoji jacket
Feb 2020, phys.org

First example I've seen of a real use for wearable tech.

Bioengineering the Anthroposphere


Scientists successfully develop 'heat resistant' coral to fight bleaching
May 2020, phys.org

Using a technique called "directed evolution", they then exposed the cultured microalgae to increasingly warmer temperatures over a period of four years.

Say it with me, Direct Evolution (aka Bioengineering the Anthroposphere aka Geoengineering the Anthropocene).

Sustainable light achieved in living plants
May 2020, phys.org
The popular fascination for sustainably glowing foliage is being realized through advances in designer genetics. 
The scientists revealed that bioluminescence found in some mushrooms is metabolically similar to the natural processes common among plants. By inserting DNA obtained from the mushroom, the scientists were able to create plants that glow much brighter than previously possible.