iiinova — where your digital self keeps evolving

Dr Eugenia Cheng -- no advice please -- @dreugeniacheng.bsky.social · 26/07/2026

Today's baguettes. Getting there. I tried scoring with 7 cuts today but I think 5 is better. I also tried only one stage of pre-shaping on the top one, but I think the two stage pre-shape made a better shape.

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Dr Eugenia Cheng -- no advice please -- @dreugeniacheng.bsky.social · 08/06/2026

Just remembered this funny moment on a flight: flight attendant got to my row and stood looking at me as if about to speak, so I looked up expectantly and she looked at me expectantly and I looked at her and eventually said "Yes?" and then she signalled for me to take out my earbuds...

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Dr Eugenia Cheng -- no advice please -- @dreugeniacheng.bsky.social · 06/06/2026

UK paperback is out! It looks gorgeous but I can't take a selfie with it until I've washed my hair!!!

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Dr Eugenia Cheng -- no advice please -- @dreugeniacheng.bsky.social · 05/06/2026

Chicago people! The Math Book Club Chicago meetup has chosen my book The Joy of Abstraction this summer! There will be four events to discuss it. The first two are virtual and the 3rd and 4th are at the Chicago Athletic Assocation. I will be attending the last one! www.meetup.com/math-book-cl...

meetup.com

The Joy of Abstraction by Eugenia Cheng, Part 1 of 4, Sun, Jun 14, 2026, 1:00 PM | Meetup

We’ll discuss chapters 1 - 8.3 of The Joy of Abstraction by Eugenia Cheng. (pgs. 1-100) ***Recommended Reading Pace: 7-8 pgs./day*** **From the Book Description**: “Math

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Dr Eugenia Cheng -- no advice please -- @dreugeniacheng.bsky.social · 12/05/2026

Wondering what to say about this fab book but realise I said it on the back cover!

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Dr Eugenia Cheng -- no advice please -- @dreugeniacheng.bsky.social · 13/03/2026

I′m in NYC for a pi day event and this is my room number!!!

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Dr Eugenia Cheng -- no advice please -- @dreugeniacheng.bsky.social · 13/03/2026

NYC people! I'm speaking at this public event at Brooklyn Central Library on Saturday evening. It's an almost all-night event but I'm at 8pm! Looks like there is tons of cool stuff going on. Do come if you can! I will also be signing books. www.bklynlibrary.org/calendar/une...

bklynlibrary.org

Unequal: The Math of When Things Do and Don’t Add Up (ASL) | Brooklyn Public Library

Unequal: The Math of When Things Do and Don’t Add UpEugenia ChengDweck Center, Lower Level

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Dr Eugenia Cheng -- no advice please -- @dreugeniacheng.bsky.social · 10/02/2026

Today I procrastinated by making chocolate truffles. They are rosemary infused (which makes the process take longer = more procrastination). At the end I needed to procrastinate more so I decided they needed gold dust.

Hand made gold dusted chocolate truffles in a triangle configuration with the corners missing.

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Dr Eugenia Cheng -- no advice please -- @dreugeniacheng.bsky.social · 18/01/2026

I rewrote the words to Strauss′s "Kornblumen" because the original poem is a bit icky, from an icky set about how girls are like flowers and here′s all the different types of girl-flowers... (Mädchenblumen). But the music is beautiful so I wrote new words, about my favourite whiskies.

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Dr Eugenia Cheng -- no advice please -- @dreugeniacheng.bsky.social · 07/01/2026

Hello! Someone messaged through the contact form on my website, about possibly speaking at an education conference. However, the email address they put in bounced. If that might have been you please send it again and check the email address! Thanks.

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Dr Eugenia Cheng -- no advice please -- @dreugeniacheng.bsky.social · 29/11/2025

Love this official pic from the Chicago Public Library Foundation awards dinner! I was very honored to be, uh, honored. The announcer was Bill Kurtis, who might have the most recognisable announcing voice in Chicago.

Eugenia Cheng walking on stage in a blue tux.

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Reposted by Dr Eugenia Cheng -- no advice please --

August, like the month @month-of-august.bsky.social · 27/11/2025

@dreugeniacheng.bsky.social told @npr.org “I love the idea that Pascal, at the age of 19, was just bored of doing the arithmetic for his dad at work... ‘I don’t want to do this anymore’—just like any teenager would and should—and went, ‘I’m going to make a machine instead that will do it for me.’”

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Reposted by Dr Eugenia Cheng -- no advice please --

Autumn Phaneuf, MSE, Ph.D (h.c) @1autumnleaf.bsky.social · 20/10/2025

Join authors @dreugeniacheng.bsky.social @onlinekyne.bsky.social Anthony Bonato @profnoahgian.bsky.social Siobhan Roberts @patchenbarss.bsky.social Paula Rowinska for Writing Math: a free hybrid event @fieldsinstitute.bsky.social, Oct 25 @ 2:30 PM ET RSVP → shorturl.at/fbQ2v

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Dr Eugenia Cheng -- no advice please -- @dreugeniacheng.bsky.social · 09/10/2025

Yes I made a papier mâché torus. Because...manifolds. what fun!! Yes I used a slinky for structure. I did half at a time, took them off the slinky and then stuck them together...

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Dr Eugenia Cheng -- no advice please -- @dreugeniacheng.bsky.social · 04/10/2025

Ooh choice dark roast or light roast coffee at a conference! Amazing! (I much prefer light roast but have never seen it at a conference)

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Dr Eugenia Cheng -- no advice please -- @dreugeniacheng.bsky.social · 04/10/2025

My talk on Thursday was the second time I've packed my digital clock but forgotten to bring it with me to the talk - boo. I figured out how to turn my ipad into a clock and keep the screen on, because I have previously failed to get my phone to do it. But I've now sat down and figured out the phone

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Dr Eugenia Cheng -- no advice please -- @dreugeniacheng.bsky.social · 03/10/2025

I still drink coffee and go straight to sleep. I wish caffeine would keep me awake. It doesn′t.

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Reposted by Dr Eugenia Cheng -- no advice please --

Ali Davis @alidavis.bsky.social · 02/10/2025

I know a lot is going on, but can we talk about the fact that people apparently drank coffee all night long right up through the '70s and then just… went to bed? Did they not sleep? Did all the smoking and drinking balance it out somehow? Is that why people looked like they were 45 from like birth?

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Dr Eugenia Cheng -- no advice please -- @dreugeniacheng.bsky.social · 24/09/2025

First time making moon cakes! A prime number of them...

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Dr Eugenia Cheng -- no advice please -- @dreugeniacheng.bsky.social · 17/09/2025

Sometimes I just want to answer "No." to every ad I see. "Hungry for and unusual culinary adventure?" No. "Think you hate tofu?" No. "Want to communicate more effectively and collaborate woth confidence?" No. "Looking forward to fall?" No.

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Dr Eugenia Cheng -- no advice please -- @dreugeniacheng.bsky.social · 15/09/2025

My snack for my teaching day today is avocado blended with raw cacao powder and it is giving me sooooo much life. I used to sweeten it with a little agave but I didn't feel the need today.

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Dr Eugenia Cheng -- no advice please -- @dreugeniacheng.bsky.social · 12/09/2025

Does anyone know what this kind of gate latch is called? I′m trying to find a replacement. It needs the vertical part to be dog-proof; I can only find ones without the vertical part that slots in to keep it closed.

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Dr Eugenia Cheng -- no advice please -- @dreugeniacheng.bsky.social · 04/09/2025

I thought I had made a prime number of cookies again...but I was mistaken!

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Dr Eugenia Cheng -- no advice please -- @dreugeniacheng.bsky.social · 02/09/2025

It's book release day in the US!! Just finished another interview about it...

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Reposted by Dr Eugenia Cheng -- no advice please --

Autumn Phaneuf, MSE, Ph.D (h.c) @1autumnleaf.bsky.social · 02/09/2025

What if math could reveal the hidden structures of injustice? I chat with mathematician and author @dreugeniacheng.bsky.social on @breakingmath.bsky.social about her new book "Unequal," exploring concepts like abstraction and outliers help us rethink fairness. Listen now. youtu.be/mVEJ1XeP5iU?...

youtu.be

Unequal with Eugenia Chang

YouTube video by Breaking Math

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Reposted by Dr Eugenia Cheng -- no advice please --

Katrina Miller @katrinamillerphd.bsky.social · 02/09/2025

“I want people to be able to gaze at math,” she said. “You can still enjoy music, even if you can’t play.” @dreugeniacheng.bsky.social spoke with me about her mission to bring math to the masses & the inspo behind her new book, Unequal: www.nytimes.com/2025/08/30/s...

nytimes.com

You Don’t Need to Be Good at Math to Enjoy It

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Reposted by Dr Eugenia Cheng -- no advice please --

Autumn Phaneuf, MSE, Ph.D (h.c) @1autumnleaf.bsky.social · 27/08/2025

Hey #math and #science friends! Sir Dash Vector Pixel-Pi would kindly like to remind everyone that @dreugeniacheng.bsky.social's new book "Unequal" comes out on Tuesday, 9/2. He thinks that one treat is zero treats and four treats is one treat in #dogmath.

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Dr Eugenia Cheng -- no advice please -- @dreugeniacheng.bsky.social · 24/08/2025

The other prep I have to do for the first day of class is trying to get used to getting up earlier. I've been edging half an hour earlier per day for a just over a week. This morning I managed to get up at 6:15 but I immediately sat down on the sofa and took a 2 and a half hour nap, oops.

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Dr Eugenia Cheng -- no advice please -- @dreugeniacheng.bsky.social · 24/08/2025

I don't think I even had to do that when I first taught, because the syllabus was in booklet that everyone already had. I also didn't have to deal with registration because students didn't register for class, they registered for exams, and that was done by someone else

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Dr Eugenia Cheng -- no advice please -- @dreugeniacheng.bsky.social · 24/08/2025

Most amazing compliment from someone I played tennis with today: "You're like a back board - you return *everything*!" Lololol.

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Dr Eugenia Cheng -- no advice please -- @dreugeniacheng.bsky.social · 23/08/2025

I need not just a weather forecast but a weather postcast, because if I wake up in the morning and it rained in the night I want to know what time it stopped, so that I can tell when the tennis courts will likely be dry enough to play.

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Dr Eugenia Cheng -- no advice please -- @dreugeniacheng.bsky.social · 21/08/2025

Well an hour and a half of extremely frustrating convo later and I can definitively say it was NOT able to help me. I have now done a hack myself but does anyone want to have a go at being more ept than ChatGPT?

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Dr Eugenia Cheng -- no advice please -- @dreugeniacheng.bsky.social · 20/08/2025

I've got an idiotic beamer problem after an Ubuntu upgrade. I'm going to try asking ChatGPT for help because google isn't working and the friend I asked is possibly asleep. Watch this space.

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Dr Eugenia Cheng -- no advice please -- @dreugeniacheng.bsky.social · 20/08/2025

I don't deliberately use AI, but if I just google something then an AI answer appears at the top without my asking it. If it's math then I sometimes have a look just out of interest, and it's still the case that what the AI think says about math is typically plausible-looking but VERY WRONG.

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Dr Eugenia Cheng -- no advice please -- @dreugeniacheng.bsky.social · 17/08/2025

No I don't use AI to write. I don't even use spell check.

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Dr Eugenia Cheng -- no advice please -- @dreugeniacheng.bsky.social · 17/08/2025

BTW I ended up dipping the aquafaba meringues in chocolate... (dark choc of course, so only ingredients cacao powder, cacao butter, and a little agave for depth)

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Dr Eugenia Cheng -- no advice please -- @dreugeniacheng.bsky.social · 17/08/2025

Finally got myself a sun visor for playing tennis as my eyes are struggling with the light...I got the "men′s" because I have a big head. Of course, the "men′s" was also cheaper than the "women′s" although as far as I could tell it was exactly the same except slightly bigger.

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Dr Eugenia Cheng -- no advice please -- @dreugeniacheng.bsky.social · 16/08/2025

Mostly I think the weather forecast can't be "wrong" because it only gives percentage probabilities. However this afternoon it said rain at 6pm with a 100% chance. It's now gone down to 88%. I'm awaiting 6pm avidly.

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Dr Eugenia Cheng -- no advice please -- @dreugeniacheng.bsky.social · 14/08/2025

Trying a new recipe this morning, was unawake enough to do the cup-to-gram conversion wrong in my head, but luckily was awake enough to realise that the dough didn't feel right at all, even though I've never made this before. PSA: 3 x 120 is not 480.

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Dr Eugenia Cheng -- no advice please -- @dreugeniacheng.bsky.social · 14/08/2025

I made plant-based meringues using aquafaba and they're amazing! I've been curious about this concept for aaages and was incredulous about it pretty much all the way to the end.

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Dr Eugenia Cheng -- no advice please -- @dreugeniacheng.bsky.social · 06/08/2025

I've just reconstructed a proof of Lagrange's theorem without looking it up, having not thought about it for about 12 years, and it's very very satisfying. I don't think any of it was what I would call "memory". It was all from internalised feelings about how subgroups work.

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Dr Eugenia Cheng -- no advice please -- @dreugeniacheng.bsky.social · 06/08/2025

Apparently my point was easily missable. I was reflecting on human scales of measurement for daily life, not for things that need calculations. Interestingly although I find it easier to think of food in ounces when I'm estimating how much I'm eating, I can't do wine in ounces.

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Dr Eugenia Cheng -- no advice please -- @dreugeniacheng.bsky.social · 01/08/2025

I really hate the argument in favour of Fahrenheit that says it's a human scale, 0 is cold, 100 is hot. Someone came up with that as a desperate attempt to justify Fahrenheit and I'm not buying it. 100 increments is way too many for air temperature for human use. I think 30 is about right, ie C.

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Dr Eugenia Cheng -- no advice please -- @dreugeniacheng.bsky.social · 29/07/2025

Today had the kind of research discussion that starts with us going "The proof of this part should be tedious but not hard" and ends with us going "Arrgggh turns out we don't actually know the definition of anyyyythhhiinnnnnggg" via a few "You've frozen"s along the way

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