Paulo Cesar Siqueira, PhD.

Assistant professor at UFRRJ. Speech-language pathologist in Rio de Janeiro. Computational chemist specializing in inorganic and photochemistry. Blues player. Personal account; opinions are my own.

Paulo Cesar Siqueira, PhD.
@pcsiqueira.academics.blue
10h
We have delegated the filtering of ideas to invisible algorithms, which show us a world tailored to our fears rather than our potential.
Matt Keeter
@mattkeeter.com
15h
oh no buddy
Screenshot of a Reddit post in the /r/softwarearchitecture subreddit, with the title How do you guys test new features when you already have users and a production level application (vercel + supabase) submitted 1 day ago by Leather-Run-3282 The text reads as follows: I've been thinking about this a lot lately and I'm curious how other people are doing it. for context- I AM NEW TO THIS SO PLEASE DONT EAT ME OUT IN THE COMMENTS
Paulo Cesar Siqueira, PhD.
@pcsiqueira.academics.blue
20h
AI fanatics really remind me of the Bitcoin-obsessed "tech bros." Both are just technology; neither is a cure for cancer.
Paulo Cesar Siqueira, PhD.
@pcsiqueira.academics.blue
1d
@flo-bit.dev blento.app is cool, but it makes no sense to have a scrollbar on the profiles, since they are short and don't exceed 300 characters.
Paulo Cesar Siqueira, PhD.
@pcsiqueira.academics.blue
2d
Bluetooth was a mistake.
Guedes do FURGÃO
@guedes.poa.br
4d
Esse é o Metro Designer 4. geueds.github.io/MetroDesigner4
The Conversation U.S.
@us.theconversation.com
4d
Autistic children are up to 160x more likely to drown than their non-autistic peers.

Many are naturally drawn to water, making water safety especially important.

Practical tips to keep children safe: theconversation.com/autistic-chi...
Paulo Cesar Siqueira, PhD.
@pcsiqueira.academics.blue
6d
When you close your eyes and stop searching outward, the world does not vanish. Rather, it shifts register. Sounds recede, shapes dissolve into a dust of phosphenes, and the mind, relieved of the task of decoding the environment, turns toward a different landscape. (1)
Paulo Cesar Siqueira, PhD.
@pcsiqueira.academics.blue
6d
Every so often the world stops working by the old rules. Not because the rules have changed, but because someone dared to look at the gaps everyone else had learned to ignore.
Paulo Cesar Siqueira, PhD.
@pcsiqueira.academics.blue
6d
Today, silence is a luxury I can't afford. I have a tangle in my head like a ball of yarn after the cat's played with it. And I don't want to untangle it, I just want to sit and stare at it, without anyone saying a word to me.
Paulo Cesar Siqueira, PhD.
@pcsiqueira.academics.blue
1w
In 🧵 (1/4)
Paulo Cesar Siqueira, PhD.
@pcsiqueira.academics.blue
2w
When someone asks you to explain non-binary gender:
Q from Star Trek saying to Picard and a group of officers, "Not a he, not a she, not like anything you've ever seen before. An enhanced humanoid."
Paulo Cesar Siqueira, PhD.
@pcsiqueira.academics.blue
2w
I'm not worried about a grammatical error if thinking is intelligent. A mistake can always be corrected, an idiot can't!
Katie Phang
@katiephang.bsky.social
2w
JUST IN: Judge Sullivan has ordered me to respond, on or before July 13th, to Todd Blanche's "I'm not turning anything over" move from last week in my lawsuit over the Epstein Files.

Then, Blanche has until July 20th to reply to what I file.
Paulo Cesar Siqueira, PhD.
@pcsiqueira.academics.blue
3w
A shallow, biased article, yet I still see some truths.
The Telegraph @telegraph.co.uk
The progressive version of Twitter offers a world of vicious, sneering odium that only those who see themselves as kinder humans dish out

🔗 https://www.telegraph.co.uk/news/2026/07/03/is-there-anything-more-pathetic-than-a-bluesky-user/?WT.mc_id=tmgoff_li_pathetic-than-a-bluesky-user/
Astronomy Bot
@astronomybot.bsky.social
3w
Astronomy Picture Of the Day - APOD

Title: Three Galaxies in Pavo
Date: 2026-07-03
Image by: Mike Selby

#APOD #NASA
Image posted by astronomybot
Paulo Cesar Siqueira, PhD.
@pcsiqueira.academics.blue
3w
My nephew ;)
Photo of a beautiful sunset.
Rest of World
@restofworld.org
3w
The scarce metals locked inside millions of expiring EV batteries have become the latest flashpoint in a high-stakes race for resource independence between China and the U.S https://restofworld.org/2026/ev-battery-recycling-china-us/?utm_campaign=row-social
The image contains three labeled boxes about EV battery materials. The first box is "Nickel," highlighting its high value and recycling benefits in U.S. and European EVs. The second box is "Cobalt," described as scarce and expensive, mostly mined in the Democratic Republic of Congo, and a recycling priority. The third box is "Lithium," noted for storing charge, high value, and difficulty in extraction and processing.
AlternativeTo
@alternativeto.net
3w
Git (by xkcd)
Two characters discuss using Git for collaborative projects, emphasizing memorization of certain shell commands for syncing work because no one really knows how it works.
Astronomy Bot
@astronomybot.bsky.social
4w
Central Bulges of Spiral Galaxies (Hubble and Ground-Based Views)
Image date: 6 October 1999, 15:00


This image shows how the barred spiral galaxy NGC 1365 is feeding material into its central region, igniting massive star birth and probably causing its bulge of stars to grow. The material also ...
Image posted by astronomybot
made with blento
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