David Sainez
@davidsainez.com
woke tech bro
working on skywriter.blue
he/him
working on skywriter.blue
he/him
Pinned
David Sainez
@davidsainez.com
· Jan 20
"We are now faced with the fact that tomorrow is today. We are confronted with the fierce urgency of now." — Martin Luther King Jr.
Wow, I was not expecting him to double down on this position. The smart move would have been to throw the ICE agents who killed Pretti under the bus, but it seems they have no coherent strategy other than “deny reality”
Q: Do you agree with the assessment from some of your own officials that Alex Pretti is a domestic terrorist or assassin?
TRUMP: Well, I haven't heard that, but he certainly shouldn't have been carrying a gun. I don't like that he had a gun.
TRUMP: Well, I haven't heard that, but he certainly shouldn't have been carrying a gun. I don't like that he had a gun.
January 27, 2026 at 9:08 PM
Wow, I was not expecting him to double down on this position. The smart move would have been to throw the ICE agents who killed Pretti under the bus, but it seems they have no coherent strategy other than “deny reality”
Reposted by David Sainez
View from above
"ICE OUT" on Lake Nokomis in Minneapolis, as seen from my flight leaving MSP airport
January 27, 2026 at 4:27 AM
View from above
Reposted by David Sainez
brass solidarity band performing “stand by me” in the streets of whittier next to alex pretti’s memorial. the crowd started chanting “the people united will never be defeated” so they incorporated it into the song. i love minneapolis
January 27, 2026 at 12:22 AM
brass solidarity band performing “stand by me” in the streets of whittier next to alex pretti’s memorial. the crowd started chanting “the people united will never be defeated” so they incorporated it into the song. i love minneapolis
PSA for anyone using signal (or really any messaging apps)
Signal will never message you like this.
If you get a message like this, SOMEONE IS TRYING TO HACK YOUR SIGNAL.
DO NOT GIVE THEM THAT CODE.
If you get a message like this, SOMEONE IS TRYING TO HACK YOUR SIGNAL.
DO NOT GIVE THEM THAT CODE.
January 26, 2026 at 3:23 AM
PSA for anyone using signal (or really any messaging apps)
Reposted by David Sainez
As clergy pray, arrests begin
January 23, 2026 at 5:00 PM
As clergy pray, arrests begin
Reposted by David Sainez
The FBI searched the home of a Washington Post reporter seeking classified state documents. Nothing she wrote about could be considered classified. They simply want to suppress dissent via intimidation. Don't let them. Here is what she wrote. Please share.
www.washingtonpost.com/politics/202...
www.washingtonpost.com/politics/202...
I am The Post’s ‘federal government whisperer.’ It’s been brutal.
One reporter’s effort to show how Trump was transforming government brought her 1,168 new sources — and nearly broke her.
www.washingtonpost.com
January 14, 2026 at 2:11 PM
The FBI searched the home of a Washington Post reporter seeking classified state documents. Nothing she wrote about could be considered classified. They simply want to suppress dissent via intimidation. Don't let them. Here is what she wrote. Please share.
www.washingtonpost.com/politics/202...
www.washingtonpost.com/politics/202...
Open social is the future
We’re excited to share that Eurosky now has a supporting legal entity, @modalfoundation.bsky.social - a new nonprofit dedicated to making open social tech viable at scale. Big Tech’s dominance can feel inevitable, but it doesn’t have to be that way.
modalfoundation.org
modalfoundation.org
Modal Foundation
Supporting decentralized social tech and open standards to create trustworthy, public-interest social media alternatives and ensure access to vital information.
modalfoundation.org
January 12, 2026 at 5:49 PM
Open social is the future
Over 160 years later, Minnesota's courage still refuses to waver
2nd July 1863. Battle of Gettysburg. For perhaps the only time in the entire war the Confederates seem to be winning.
Dan Sickles, commander III Corps, is ordered hold on Cemetery Ridge. For reasons unknown he advances. Broken, his men begin to flee.
This is the moment on which the war depends /1
Dan Sickles, commander III Corps, is ordered hold on Cemetery Ridge. For reasons unknown he advances. Broken, his men begin to flee.
This is the moment on which the war depends /1
January 11, 2026 at 9:10 AM
Over 160 years later, Minnesota's courage still refuses to waver
Reposted by David Sainez
If you are anxious and sad about the state of the world, that's fine, and there are plenty of strategies for dealing with that. But I think you already know that drive-by online dooming isn't a strategy. It's selfish and adolescent. It's a contagion that only spreads the worst of you, not the best.
January 8, 2026 at 3:51 AM
If you are anxious and sad about the state of the world, that's fine, and there are plenty of strategies for dealing with that. But I think you already know that drive-by online dooming isn't a strategy. It's selfish and adolescent. It's a contagion that only spreads the worst of you, not the best.
Impeccable aura
I saw this video of a Vietnam vet in the fur coat yelling at ICE and thought to myself, "this is missing something," before I realized, "Ah, of course, the Ether instrumental. It's so obvious."
January 9, 2026 at 8:52 PM
Impeccable aura
Reposted by David Sainez
This is a really good feed and it's become my go-to for Bluesky since I learned about it last week. I am an idiot so I don't know what makes it different, but it is better.
Enjoying the For You feed? Give it a like ♡ to help more people discover it: bsky.app/profile/did:...
The more people use it -> the more feedback we get -> the better we can make it for you.
The more people use it -> the more feedback we get -> the better we can make it for you.
January 6, 2026 at 10:56 PM
This is a really good feed and it's become my go-to for Bluesky since I learned about it last week. I am an idiot so I don't know what makes it different, but it is better.
Reposted by David Sainez
It's funny how Zohran's tactic appears to be showing up to things that are well-known problems and going "wait why haven't we fixed this yet"
January 6, 2026 at 6:07 PM
It's funny how Zohran's tactic appears to be showing up to things that are well-known problems and going "wait why haven't we fixed this yet"
Reposted by David Sainez
That said, we know people want more safety tools, so @eugenevinitsky.bsky.social and I are building them!
Here's what that looks like in our client. My post got a lot of interactions and then a big account reposted it, so alerts showed up and I have tools to deal with it.
Give us more ideas!
Here's what that looks like in our client. My post got a lot of interactions and then a big account reposted it, so alerts showed up and I have tools to deal with it.
Give us more ideas!
January 5, 2026 at 9:59 PM
That said, we know people want more safety tools, so @eugenevinitsky.bsky.social and I are building them!
Here's what that looks like in our client. My post got a lot of interactions and then a big account reposted it, so alerts showed up and I have tools to deal with it.
Give us more ideas!
Here's what that looks like in our client. My post got a lot of interactions and then a big account reposted it, so alerts showed up and I have tools to deal with it.
Give us more ideas!
I oscillate between both ends a couple of times per week
Example of great communication between people at two different levels of the skeptic–believer continuum.
Ok:
Write a python package that does multivariate Nadaraya-Watson and local polynomial kernel regression with homo-/heteroscedastic goodness of fit checking and automatic crossvalidated order and bandwidth selection as an sklearn (fit/predict) compatible class.
Write a python package that does multivariate Nadaraya-Watson and local polynomial kernel regression with homo-/heteroscedastic goodness of fit checking and automatic crossvalidated order and bandwidth selection as an sklearn (fit/predict) compatible class.
January 4, 2026 at 7:14 PM
I oscillate between both ends a couple of times per week
Reposted by David Sainez
'Souls Tied'
A deeply personal, and very special, image to me. Taken back in 2021 at the iconic Dark Hedges.
This image won both 'World Landscape Photographer 2022' & the 'UK Landscape Photographer Of The Year - Black & White' category.
#landscapephotography
#northernireland
#darkhedges
A deeply personal, and very special, image to me. Taken back in 2021 at the iconic Dark Hedges.
This image won both 'World Landscape Photographer 2022' & the 'UK Landscape Photographer Of The Year - Black & White' category.
#landscapephotography
#northernireland
#darkhedges
December 14, 2025 at 9:42 AM
'Souls Tied'
A deeply personal, and very special, image to me. Taken back in 2021 at the iconic Dark Hedges.
This image won both 'World Landscape Photographer 2022' & the 'UK Landscape Photographer Of The Year - Black & White' category.
#landscapephotography
#northernireland
#darkhedges
A deeply personal, and very special, image to me. Taken back in 2021 at the iconic Dark Hedges.
This image won both 'World Landscape Photographer 2022' & the 'UK Landscape Photographer Of The Year - Black & White' category.
#landscapephotography
#northernireland
#darkhedges
Reposted by David Sainez
These Ukrainian girls are risking their lives defending freedom, showing far more courage and “ethos” than self-styled “warriors” whose patriotism peaks in killing defenseless castaways. Let's stand together & support decency! Still €4,300 to go: euromaidanpress.com/lets-support...
December 8, 2025 at 12:44 PM
These Ukrainian girls are risking their lives defending freedom, showing far more courage and “ethos” than self-styled “warriors” whose patriotism peaks in killing defenseless castaways. Let's stand together & support decency! Still €4,300 to go: euromaidanpress.com/lets-support...
Fascinating. Wasn’t there also a recent study about creatine and sleep? I wonder if there is some connection there?
Animals Sleep Because Electrons Leak
The need for sleep likely evolved to get rid of toxic molecules from the mitochondria, a landmark study shows using sleep-deprived flies.
Written byAndrea Lius, PhD
www.the-scientist.com/animals-slee...
#neuroscience #research #sleep #evolution #education 🧪
The need for sleep likely evolved to get rid of toxic molecules from the mitochondria, a landmark study shows using sleep-deprived flies.
Written byAndrea Lius, PhD
www.the-scientist.com/animals-slee...
#neuroscience #research #sleep #evolution #education 🧪
Animals Sleep Because Electrons Leak
The need for sleep likely evolved to get rid of toxic molecules from the mitochondria, a landmark study shows using sleep-deprived flies.
www.the-scientist.com
September 21, 2025 at 1:17 AM
Fascinating. Wasn’t there also a recent study about creatine and sleep? I wonder if there is some connection there?
Reposted by David Sainez
Skywriter is dedicated to accessibility. Explore our keyboard navigation demo for just one of the many benefits available when you share your content with Skywriter.
Did you know that 1 in 4 working-age adults have a dexterity difficulty or impairment? [1] That's why Skywriter is built with keyboard navigation and clear focus indicators. Our design ensures your readers can engage with your long-form writing without barriers.
Skywriter keyboard navigation
YouTube video by David Sainez
www.youtube.com
June 25, 2025 at 9:53 PM
Skywriter is dedicated to accessibility. Explore our keyboard navigation demo for just one of the many benefits available when you share your content with Skywriter.
Hi did you happen to disable the replies before the bot could reply with the link? You can also use a quote post to unroll if you want to disable replies. @unroll.skywriter.blue
So I went to see if Mike Brock, the author of this, is on Bluesky. He is, but he's blocked by the "very British transphobe" list. Curious. I sought out more info b/c much as I agree with what he says, I noted some glaring blind spots, too. We didn't just suddenly get a fascist gov out of nowhere.
🧵
🧵
"authoritarianism thrives in ambiguity. It requires linguistic fog to operate. It depends on our unwillingness to call things by their proper names. Every euphemism is a small surrender. Every hedge is a tiny collaboration. Every refusal to speak plainly is a gift to those who profit from confusion"
July 3, 2025 at 12:07 AM
Hi did you happen to disable the replies before the bot could reply with the link? You can also use a quote post to unroll if you want to disable replies. @unroll.skywriter.blue
Great and immediately practical piece by @asmartbear.com. A lot of his writing is useful when reasoning about complex/fuzzy systems in general.
longform.asmartbear.com/roi-rubric/
longform.asmartbear.com/roi-rubric/
Fermi ROI: Fixing the ROI rubric
Traditional rubrics fail to reveal the best answers, or how to explain those answers to others. After explaining why, the following system solves both failures.
longform.asmartbear.com
June 29, 2025 at 7:47 PM
Great and immediately practical piece by @asmartbear.com. A lot of his writing is useful when reasoning about complex/fuzzy systems in general.
longform.asmartbear.com/roi-rubric/
longform.asmartbear.com/roi-rubric/
Reposted by David Sainez
National Guard members accompany their own mother to her immigration appointment in order to protect her from ICE.
June 19, 2025 at 5:51 PM
National Guard members accompany their own mother to her immigration appointment in order to protect her from ICE.
Reposted by David Sainez
This drum circle is a sacred honor in memory of slain MN State Legislator Melissa Hortman, at the candlelight vigil
June 19, 2025 at 3:06 AM
This drum circle is a sacred honor in memory of slain MN State Legislator Melissa Hortman, at the candlelight vigil
We need more waitresses in Congress. secure.actblue.com/donate/cooke...
June 11, 2025 at 10:07 PM
We need more waitresses in Congress. secure.actblue.com/donate/cooke...
Reposted by David Sainez
If you watch only one video today, let it be this one.
Watch NYU Stern School of Business Professor Scott Galloway’s outstanding commentary on what prosperity and wealth should mean in America.
His words could not be more on point and timely.
Please pass it on.
Watch NYU Stern School of Business Professor Scott Galloway’s outstanding commentary on what prosperity and wealth should mean in America.
His words could not be more on point and timely.
Please pass it on.
June 5, 2025 at 11:25 PM
If you watch only one video today, let it be this one.
Watch NYU Stern School of Business Professor Scott Galloway’s outstanding commentary on what prosperity and wealth should mean in America.
His words could not be more on point and timely.
Please pass it on.
Watch NYU Stern School of Business Professor Scott Galloway’s outstanding commentary on what prosperity and wealth should mean in America.
His words could not be more on point and timely.
Please pass it on.
Reposted by David Sainez
Great strategy, positioning, marketing, and products read as “simple,” because they're born from clear thinking and writing.
The process was likely messy, painful, protracted.
Like an Olympian making it "look easy."
Greatness appears effortless, but never is.
The process was likely messy, painful, protracted.
Like an Olympian making it "look easy."
Greatness appears effortless, but never is.
June 3, 2025 at 8:32 AM
Great strategy, positioning, marketing, and products read as “simple,” because they're born from clear thinking and writing.
The process was likely messy, painful, protracted.
Like an Olympian making it "look easy."
Greatness appears effortless, but never is.
The process was likely messy, painful, protracted.
Like an Olympian making it "look easy."
Greatness appears effortless, but never is.