It's a very different perspective when we realize that our bodies consist of an entire ecology of bacteria and viruses that are also passed to our ancestors. Mammals rear their young and as a consequence transfer the microbiome and virome to their offspring.

A children's book written in 1954 inspired by Wiener's Cybernetics that explains some common day analog systems:

Analog computation originally meant the construction of a simulation of another system by means of a mechanical or electrical system that represented the same dynamics as the physical system. That is an analog of what's being simulated.

Nobert Wiener generalized this idea in Cybernetics to describe control systems that through negative feedback promoted stability.

W.Ross Ashby argued that negative feedback was insufficient for maintaining the stability (homeostasis) of complex system. Ashby proposed the Law of Requisite Variety.

These machines that 'seem to think' are examples of what was known as analog computation. Cybernetics, control theory, biology are examples of analog computation. But what does this mean other than being the opposite of discrete/digital computation?

Damasio in his book 'The Strange Order of Things' argues that the core of condition lies in homeostasis. I agree with this generalization. But let me work out in a tweet storm how consciousness relates to homeostasis.

Human consciousness is related to awareness of surprising or threatening observations. It's an error-correcting mechanism that lends attention to discrepancies of our expectations of the world.

The mind is composed of many layers of cognition. Also, its massive parallelism implies reducing the conditional checks required for error correction.

To do this, consciousness is engaged only in a time-sliced manner in a periodic manner. The majority of time spent is in unconscious activity with only periodic activation of the conscious error-correcting process.

The system 1 unconscious intuitive mechanism minimizes the effort of performing error correction. It is automated and driven by habit. It is like a river flowing without obstructions.

Star Wars has a simple dichotomy between good and evil. But as the stories have evolved, the nuances between these distinct poles also has acquired a richness that is hard to dismiss.

In the latest trilogy, we discover a dysfunctional civilization even after the defeat of the empire. The argument that the remnants of the empire make is that the galaxy stills seeks a need for order. Order and chaos are at seperate poles where evil is aligned with order.

We know however from D&D alignment charts that good and evil, order and chaos can exist in many combinations:

It is also interesting that the Sith (the Evil sorcerers) only come in pairs as opposed to the Jedi that can be entire communities. Apparently, to sustain evil one has to restrict agency and individuality to just a few. A community of evil-doers very quickly turns on itself.

So at one extreme we have evil, order, individuality and at the other we have good, chaos, collective. Which brings up the question, what is the definition of evil and good? Something that we took for granted ever since the first Star Wars movie.

Genes are to Evolution, Memes are to Culture, Dicenes are to General Intelligences.

Open-ended generative processes like evolution and human culture have a thing that is replicated and propagated by the process. For evolution, these are known as genes. For culture, these are known as memes.

It became obvious to me that there isn't an equivalent for individual brains. Is there something that is equivalent to this in general intelligent systems or biological brains?

I have come up with a term that describes these. The word I've invented is 'dicene'. This word is inspired by C.S. Peirce's dicent sign or dicisign. It is the combination then of dicent and gene, and thus dicene.

But why dicene over so many other possibilities like schemes, themes, intuitions, patterns, schemas, embeddings, attention, habits, explanations, ideas, meanings, representations, concepts, analogies, and lekta?

The interview with CNBC of @chamath is a much watch because there is so much insight hidden underneath.

There are many things that caught my attention. The one thing was the abstraction that hedge fund strategies are all 'momentum' plays. What it seems to imply is that the marshaling of resources at an opportune time drives the future behavior of a stock.

From basic physics, we know that momentum is mass times velocity. So any 'momentum' tactic employs the variation of mass, velocity or both. Wrt stocks, mass is money and velocity is speed of trade.

We cannot argue that there are benefits of scale associated with having more money. Also, high-frequency trading has shown the value of high-speed trading. So in an abstract sense, market manipulation can involve a kind of momentum play.

The objective of stock trading is to buy a financial instrument at a low price and sell it at a higher price. The purpose of a momentum play is to front-run the decision process of other traders such that one acquires the assets before a decision is made.

We’ve done menstruation, let’s talk about the menopause! Because only women however they present can have the menopause although men who have had treatments for prostate cancer can have symptoms mimicking the menopause. There’s nothing scary about

the menopause. It’s a perfectly natural function of the body but it’s tied up with a thousand stereotypes of women, ageism and ‘old women are frightening’. True, old women are often very frightening to young men because look! A woman who doesn’t give a rat’s

arse what you think of her now all her mating hormones have gone and with it your charm as a potential mate. Now you’re just another annoying lad. That’s gotta hurt. Menopause means Wisdom, like it or not and it’s not always nice or cosy. Old women

are encouraged to refer to themselves as ‘young at heart’ and ‘as young as you feel’ and other such crap and told to ‘never give in to age’ which is ludicrous. Cosmetic surgery is now a thing but I can tell you what the surgeons and marketing

men won’t - it does not make you look young. You’re just an old woman who looks like at best, she’s had a great holiday and at worst like she was was trapped in a wind tunnel. Old is good. Old is meritorious. Old is survival. Old means you didn’t die young

@br0oklynzo0 @KatyMontgomerie @ElPolloDiabloX @AbigailShrier @chadfelixg Okay, so you haven't read the study in the British Journal of Sports Medicine, you've read a Guardian story about it.

I have now read the study, and I teach critical appraisal as part of my job, so let's dive into it a bit.

@KatyMontgomerie @ElPolloDiabloX @AbigailShrier @chadfelixg First things first, the sample size in this study is tiny. 46 people. Plus, the point of comparison was "all women and men under the age of 30 in the Air Force between 2004 and 2014" rather than a longitudinal group.

@KatyMontgomerie @ElPolloDiabloX @AbigailShrier @chadfelixg So no matching for age, background, or physical condition. The result of these is that you're going to get a lot of statistical artefacts.

@KatyMontgomerie @ElPolloDiabloX @AbigailShrier @chadfelixg Second of all, there were three points of comparison here and you're ignoring two of them. The researchers measured for push-ups and sit-ups as well, both of which showed physical advantage removed entirely by hormones. Which means you're cherrypicking.

@KatyMontgomerie @ElPolloDiabloX @AbigailShrier @chadfelixg So what do you get when you have a tiny sample size and cherrypicked results? That's right, you get noise in the data. Take a look at the results graph from this paper you haven't read.

Me: Made a thread about how people don't understand hyperacusis and give advice that obviously I've already tried.

This person only a few tweets into the thread:

I only tweeted this because, like it or not, this is the general population's reaction to me talking about hyperacusis.

Similar replies happened when there was the whole "not clapping" article regarding Cambridge.

They're so quick to label disabilities as not real disabilities.

It's important to remember this when people may ask why we've never talked about this before, or why it's not talked about a lot.

Most people don't talk about their hyperacusis because if they do, people respond like this. So most of the time, honestly it's easier to say nothing

Yes I am petty enough to add screenshots of this toxicity to this thread:

Asking for accessibility is "pathetic." /s : )

The importance of T-cell immunity!
A recent study has found that after one dose of Pfizer’s vaccine, patients had a strong T-cell response, and a boosted antibody response after their second dose. This is good news for many reasons so let’s read up.

This study found that people’s antibodies were moderately effective against the original strain after their first dose of Pfizer’s vaccine, less effective against the B.1.1.7 variant, and were unable to neutralize the B.1.351 variant. Read what I said, that’s only after ONE dose.

However, they had strong T-cell responses against ALL known variants after the first dose. So why is this important? To recap, T-cells stimulate B-cells to make antibodies. Antibodies are just your first line of defense which is what is initiated when you get a vaccine.

It’s our T-cells that are responsible for long-term immunity. When antibodies diminish after your initial inoculation, your T-cells-will tell your B-cells it’s time to produce more antibodies. As long as your T-cells still recognize this virus and inform your B-cells they need

to produce antibodies, the vaccine is still doing its job. Your antibodies will get built up over and over again. Just FYI your TCRs and your BCRs target different parts of the Coronavirus’ spike protein. Antibodies can prevent infection, your T cell-responses ensure that those