Rowena Ball

Rowena Ball

@rowena-mathscieng.bsky.social

Professor in mathematical sciences, Indigenous and non-Western mathematics, Origin of life, Cross-disciplinary interests in all STEM, Railways, Country pub lunches She/her, widowed, with 3 children and 5 grandchildren

351 followers294 following920 posts

I run the clockless household. Very liberating you all should try it. When the currawong calls I know I can go back to sleep. The magpie yodels me out of bed at dawn. Public transport is pretty much turn-up-and-go. Freedom from the grim chore of changing the car clock! Flights? Afternoon ones only.

Barbara Fantechi@barbarafantechi.bsky.social

I just checked and the microwave oven had the correct time, but I had to reset the usual oven myself.

Interesting. Damn good research on the complex, adaptive systems of biology and ecology is bringing the cane toad problem under control. Funny thing, I hear very similar language used wrt the 'unstoppable' march of AI: cannibalistic, parasitic, adaptive, evolving, all-consuming... Hmm, I wonder...

Professor Asha Rao@asharao.bsky.social

Okay, now I think I know why we no longer seem to hear about the march of the cane toads. youtu.be/5GF7rKpAMOw

The probability that a small perturbation on part of a network will grow and propagate, rather than die down harmlessly, increases with network connectivity and with the strength of connections, and that probability jumps dramatically the higher the number of nodes. Sydney Trains never learns.

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Can we survive AI? Can any biological life survive AI? Or vice versa? Hmm...might revisit some old stuff. Years ago I and a collaborator published a paper in which we tested the hypothesis that two complex, adaptive, evolving systems cannot coexist,

Timothy Gowers@wtgowers.bsky.social

Many people with relevant expertise think there's a real chance that AI could kill us all in the not too distant future. Others disagree. I've written a post, aimed principally at mathematicians, detailing my struggles to decide what to make of this. gowers.wordpress.com/2026/10/16/h...

and which answers the question of why there cannot be a a co-existent 'shadow' biosphere, or a Life 2.0. I also feel there might be much to learn from the parasitologists that could be pertinent to this question of whether there could be a stable AI-life equilibrium.

'The operation was carried out for free under the hospital’s Saudi Conjoined Twins Program. The family sent the twins to Saudi Arabia after hospitals in the United States, the United Kingdom, Australia and Mexico wanted large up-front payments.' Shame-job, Australia

Watching over the rugrats (aka grandchildren) playing with friends at the park. They are kind and helpful and thoughtful towards each other. They take turns and negotiate fairly. They share generously toys they brought (squishies apparently, or some thingie mysterious to me).

The 7 and 8 year olds help the 4 and 5 year olds onto the flying fox and hold them so they don’t become afraid. They sit together on the ground and talk with and listen to each other (on topics important to them). The beauty of the wildflowers at playground edge helps soften the environment too!

This is a poor, little, remote town in the west of Tasmania. The older kids roam free and safe in the streets with bikes and scooters and balls to kick along, talking and sharing and learning from each other. Charming to see! O what happens to make some people mean when they grow up?

A worthy addition to my album of original photos, 'Public Lavatories on Scenic Headlands'. Local councils DownUnder are good at choosing such special sites for concrete block Ladies & Gents. This splendid exemplar is perfectly situated on Tassie's wild west coast at Marrawah.

You may admire the wild, heaving, southern ocean, sheltered in comfort from the squalls of horizontal rain, contemplating the amazing fact of no land between this toilet block and Argentina. Bonus ocean views for cars parked in spacious asphalted carpark.

Rowena Ball reposted

Bert Flugelman’s Cones (1982) at the National Gallery of Australia in Canberra caught my eye! The interplay of conical geometry, rotational symmetry, and specular reflection struck me. I took this photo on the gallery grounds, love how the conical forms catch the light. #mathsart #mathematics

Rowena Ball reposted

Birman is a true icon (and a fellow Jewish woman mathematician from NYC). Her work inspired me to study braids, and continues to inspire me almost daily. This is my favorite clip of her: youtu.be/SKcx7T0VjgY An incredibly accomplished mathematician and a brilliant expositor 🪢 🧮

youtu.beyoutu.be
Lyndie Chiou@lyndie.bsky.social

I interviewed 99-year old Joan Birman who must be the oldest author on a major breakthrough paper. As an added bonus: her team beat the guys trying to use AI! Please read and share about this human triumph: www.scientificamerican.com/article/how-... #science #math 👩‍🔬

Control the cars they are really bloody annoying, I walk all over my university campus and the city and everywhere I go ragged traffic interrupts my peaceful meditative walkage. People driving big ugly metal boxes seem to think I'm the problem.

Greg Vann@gregvann.bsky.social

Whats the point of making places better for walking, did I hear people asking? Well here’s 50 - count ‘em, there’s FIFTY - benefits of more walkable places! www.fastcompany.com/3062989/50-r...

Freedom to sleep with windows open when the overnight temperature is minus 5 degrees C! Healthy and cosy. you all should try it. Most hotel rooms are insufferably claustrophobic in this respect.

Philip Thalis@philipthalis.bsky.social

The many freedoms of openable windows; - fresh air - sounds of street life - sound of birdlife & rustle of trees in the breeze - to call to people in the street - operability - being inside/outside Freedom from air-conditioning. Everyday freedoms, increasingly denied by sealed facades

This is just an amusing teaser to get you thinking, because the problem of biological achirality has not been seriously considered when asking questions about life elsewhere in the universe.

Rowena Ball@rowena-mathscieng.bsky.social

Because the aliens are of opposite chirality. They are made of L-ribonucleotides and D-amino acids. If the aliens came here the pub bistro menus would have to include OC options (as well as the usual GF and V), or they would starve. The OC foods would have to be made in a lab – hideously expensive.

Part of the difficulty is that, to this day, mathematics has not come to terms with chiral asymmetry, although it is well-known empirically to physicists since 1904, and to chemists since the 1850s. Its effects in pharmacology were only realized after the thalidomide tragedies of the 1950s.

A pair of enantiomorphs is isometric, as well as being non-superposable mirror images, so we need coordinates to distinguish them. I feel this is an area in which human, non-AI, mathematics could help make real advances in understanding the occurrence, distribution and fate of life in the universe.

Understatement of the week: Students from low socioeconomic backgrounds describe receiving limited understanding from family and friends.

There are 3 left-spiral (sinistral) snails and 6 right-spiral (dextral) snails. Sinistral snails are rare and were called Kings. The setting is a Christian basilica, so... Chiral codes were used in Australian Indigenous societies too, centuries before chirality was 'discovered' by Western science.

Carausius@carausius286.bsky.social

A Roman mosaic of snails escaping a basket. 🏛️ Basilica Patricale, Aquileia 🇮🇹 🕰️ 4th century AD #MosaicMonday

Aha, an old bookshop. Abandon time all ye who enter. "Chamber's Seven-Figure Mathematical Tables, 1878". Amazing. They would have been computed by assistants, probably women. Oh well, at least I have rescued one book from the AI shredder!

Aha, an old bookshop. Abandon time all ye who enter. "Chamber's Seven-Figure Mathematical Tables, 1878". Amazing. They would have been computed by assistants, probably women. Oh well, at least I have rescued one book from the AI shredder!

That book has been well-thumbed by generations of students and mathematical practitioners, and has travelled across oceans and continents and within cities. One day a grad student in forensic science could take DNA swabs from the pages and do some book archaeology! Reason enough to rescue it.

This organisation would be hugely strengthened by active inclusion of a greater diversity of global mathematics, mathematical cultures, and mathematicians. www.ahmath.org

ahmath.orgAHM
Rowena Ball@rowena-mathscieng.bsky.social

Fine, good, although...this Association for Human Mathematics seems overly European-British-US-centric. 'The mathematical community' – to whom and what cultural mathematics does that refer? Oh well, never mind. I guess the AHM be a response to a threat by AI specifically to some Western mathematics

Seems the Institute for Heritage and Human Mathematics that I founded in July at a conference I convened will be sited at Bundaberg. Mathematicians made redundant by AI and students will get day jobs picking strawberries and evenings make and disseminate human mathematics together. #mathsky

Rowena Ball@rowena-mathscieng.bsky.social

Well get good at it. Strawberry-picking robots are not yet even a twinkle in AI's eye. Anyway, the Bundaberg region, Taribelang Bunda lands, is a jewel, paradise on Earth. Rivers, mountains, wildlife, forests, beaches, Great Barrier Reef, trains, and towns of bungalows built of rainforest timbers.

The old answer to that old question was that mathematics is the part of physics where the experiments are cheap. So mathematics used to be good value. Now we hear that a mathematics experiment costs 22 million dollars. Ha! Maybe the roles are now reversed!

Amie Albrecht@nomadpenguin.bsky.social

Listening to the recent ICM panel discussion on 'What Is Math For in the Age of AI?' got me thinking about a much older question. What do we value in learning mathematics? Read my latest blog post here: amiealbrecht.com/2026/09/10/s...

Get a life, ye AI losers. Give the real world a go. One student included "Samples of my conversations with Claude" in their honours thesis. *Honestly*. Gen-AI riddled grant applications and manuscripts to review and theses to mark and unsolicited CVs have become a torrential deluge. Heaven help us!

Rowena Ball@rowena-mathscieng.bsky.social

O happy AI-free afternoon! O the treasures at the Lifeline Bookfair! What a delightful swag to come home with! There are literally barns full of books, and crowds of families and kids and loners and oldies buying them. No-one here is crafting AI prompts. www.lifelinecanberra.org.au/books/bookfa...

Rowena Ball reposted

Replying to @barbarafantechi.bsky.social

And socks. Ohh those all-male 4th year and graduate maths and physics classes! They stink! Don't those dudes ever change their socks or wash their feet? Or wash anything? No wonder the women avoid or drop out.

Excuse me, have we e-met? Ha! Thanks for the idea! To be deployed on all the whitesplainers, mansplainers, white supremacists, and the "I'm-not-a-mathematician-but-"s and other major and minor annoyances who spam my emails and msgs

Michael Barany@mbarany.com

remember when we all used to "e-introduce" and "e-meet" people over "e-mail" because it seemed obvious that we needed to rhetorically distinguish that kind of introduction/meeting from the real thing?

Could get tricky. If we are visited by aliens from another galaxy who are made of L-ribonucleotides and D-amino acids, then pub menus would have to include 'OC' (opposite chirality) as well as 'V' (vegan) and 'GF' (gluten-free) options on their menus, otherwise the aliens would starve.

SETI Institute@setiinstitute.bsky.social

👽 What happens when we finally discover life beyond Earth? SETI Institute biologist Margaret Race and AIR Program Director Bettina Forget joined Michael L. Wong and Regina G. Barber at the Exploratorium to explore how science, art, and imagination can prepare us. 🧪 👩‍🔬 🎥 Watch: buff.ly/Tnrrcw7

The OC foods would have to be made in the lab so they would be expensive (but I suppose it would be good for the economy).  The aliens could host Science in the Pub sessions on the importance of symmetry breaking to initiation and persistence of complex emergent processes (such as life) #mathematics