Daniel Feshbach
@danielprime.bsky.social
He/him. CS PhD student at University of Pennsylvania working on getting computers to help us design robots. FRC mentor, member of GETUP-UAW. All views are my own (or occasionally not even that, upon more consideration).
danielfeshbach.github.io
danielfeshbach.github.io
Reposted by Daniel Feshbach
To clarify for the non-roboticists out there:
Two legged humanoid robots only stay standing when they’re powered and the control loops managing the joints and actively detecting the balance situation are all functioning.
Lose power? It keels over. All 120-200 lbs of it.
Two legged humanoid robots only stay standing when they’re powered and the control loops managing the joints and actively detecting the balance situation are all functioning.
Lose power? It keels over. All 120-200 lbs of it.
Friendly reminder that dynamically balanced bipeds are actually unsafe to have operating in proximity to small children, pets, etc and that there are companies actively avoiding anything to do with creating or trying to meet safety standards to mitigate this
The Humanoid Robot That Fell on Cardi B in San Francisco mikekalil.com/blog/cardi-b...
February 8, 2026 at 12:56 PM
To clarify for the non-roboticists out there:
Two legged humanoid robots only stay standing when they’re powered and the control loops managing the joints and actively detecting the balance situation are all functioning.
Lose power? It keels over. All 120-200 lbs of it.
Two legged humanoid robots only stay standing when they’re powered and the control loops managing the joints and actively detecting the balance situation are all functioning.
Lose power? It keels over. All 120-200 lbs of it.
Reposted by Daniel Feshbach
“Sure they’re helping against fascism, but let’s wait for the real test: whether or not they correctly ascribe historical change to materially-rooted class conflict”
January 28, 2026 at 2:09 PM
“Sure they’re helping against fascism, but let’s wait for the real test: whether or not they correctly ascribe historical change to materially-rooted class conflict”
Reposted by Daniel Feshbach
bro whistles are the NICE option. do you really want to challenge 1,000 nerds with 3D printers to invent something louder and more annoying???
January 28, 2026 at 1:08 AM
bro whistles are the NICE option. do you really want to challenge 1,000 nerds with 3D printers to invent something louder and more annoying???
Reposted by Daniel Feshbach
In the early 1930s the SA was roughing people up, creating chaos in neighborhoods, seeking to terrorize with the occasional killing. By the late 1930s it had been supplanted by the SS, which was much better trained.
Also, may I say that I don’t agree with people saying ICE and CBP need “more training.” They’re doing exactly what this administration has trained them to—impose a reign of fear in blue cities. They don’t need more training. They need to be ripped up root and branch.
January 25, 2026 at 3:50 PM
In the early 1930s the SA was roughing people up, creating chaos in neighborhoods, seeking to terrorize with the occasional killing. By the late 1930s it had been supplanted by the SS, which was much better trained.
Reposted by Daniel Feshbach
I just don't buy arguments that all this cruelty against immigrants is a mean to some other end. It can be used that way, but it's worth remembering that Nazis diverted resources during wartime to make sure to kill Jews.
January 24, 2026 at 9:41 PM
I just don't buy arguments that all this cruelty against immigrants is a mean to some other end. It can be used that way, but it's worth remembering that Nazis diverted resources during wartime to make sure to kill Jews.
Reposted by Daniel Feshbach
People are missing a big thing about the saga of the detained 5-year-old. When Vance calls the father an "illegal alien" it seems to reflect a little-known Trump admin move that attempts to nullify asylum claims before they are even heard.
This policy is a horror:
newrepublic.com/article/2056...
This policy is a horror:
newrepublic.com/article/2056...
January 23, 2026 at 6:21 PM
People are missing a big thing about the saga of the detained 5-year-old. When Vance calls the father an "illegal alien" it seems to reflect a little-known Trump admin move that attempts to nullify asylum claims before they are even heard.
This policy is a horror:
newrepublic.com/article/2056...
This policy is a horror:
newrepublic.com/article/2056...
Reposted by Daniel Feshbach
Context for what I mean by RLaaS:
splittinginfinity.substack.com/p/rl-as-a-se...
splittinginfinity.substack.com/p/rl-as-a-se...
RL-as-a-Service will outcompete AGI companies (and that's good)
Hyping up a safer way to develop AI.
splittinginfinity.substack.com
January 23, 2026 at 3:29 AM
Context for what I mean by RLaaS:
splittinginfinity.substack.com/p/rl-as-a-se...
splittinginfinity.substack.com/p/rl-as-a-se...
Reposted by Daniel Feshbach
This is the most astonishing graph of what the Trump regime has done to US science. They have destroyed the federal science workforce across the board. The negative impacts on Americans will be felt for generations, and the US might never be the same again.
www.nature.com/immersive/d4...
www.nature.com/immersive/d4...
January 20, 2026 at 10:53 PM
This is the most astonishing graph of what the Trump regime has done to US science. They have destroyed the federal science workforce across the board. The negative impacts on Americans will be felt for generations, and the US might never be the same again.
www.nature.com/immersive/d4...
www.nature.com/immersive/d4...
Reposted by Daniel Feshbach
Having seen several abductions up close, it is really hard to convey how much the thing they’re doing is roaming in military convoys until they see someone who is alone and isn’t white, and then jumping out in large numbers, pulling them into a van, and screeching off, all in 90 seconds or so.
"“They specifically asked me if I knew where the Hmong families lived on my street & in the neighborhood.” Lugert-Thom responded, “I don’t know anything about that” & she said they then asked, “Well, what about the Asian families?”"
"“I was a bit shaken & a bit shocked of what I was asked to do.”"
"“I was a bit shaken & a bit shocked of what I was asked to do.”"
A St. Paul resident says federal officers knocked on her door and asked her to identify Hmong and Asian households in her North End neighborhood last week.
January 14, 2026 at 2:31 PM
Having seen several abductions up close, it is really hard to convey how much the thing they’re doing is roaming in military convoys until they see someone who is alone and isn’t white, and then jumping out in large numbers, pulling them into a van, and screeching off, all in 90 seconds or so.
Reposted by Daniel Feshbach
Literal gestapo shit. I don't know what to say other than that it happened here.
"“They specifically asked me if I knew where the Hmong families lived on my street & in the neighborhood.” Lugert-Thom responded, “I don’t know anything about that” & she said they then asked, “Well, what about the Asian families?”"
"“I was a bit shaken & a bit shocked of what I was asked to do.”"
"“I was a bit shaken & a bit shocked of what I was asked to do.”"
A St. Paul resident says federal officers knocked on her door and asked her to identify Hmong and Asian households in her North End neighborhood last week.
January 13, 2026 at 10:46 PM
Literal gestapo shit. I don't know what to say other than that it happened here.
Reposted by Daniel Feshbach
I really want ppl w/o Minneapolis connections to understand
You might've heard that Mpls public schools went hybrid bc so many families are in hiding. Well, a coworker just told me that today, during his kid's hybrid class, a kid's apt building was raided onscreen
*Everyone has stories like this*
You might've heard that Mpls public schools went hybrid bc so many families are in hiding. Well, a coworker just told me that today, during his kid's hybrid class, a kid's apt building was raided onscreen
*Everyone has stories like this*
January 13, 2026 at 6:06 PM
I really want ppl w/o Minneapolis connections to understand
You might've heard that Mpls public schools went hybrid bc so many families are in hiding. Well, a coworker just told me that today, during his kid's hybrid class, a kid's apt building was raided onscreen
*Everyone has stories like this*
You might've heard that Mpls public schools went hybrid bc so many families are in hiding. Well, a coworker just told me that today, during his kid's hybrid class, a kid's apt building was raided onscreen
*Everyone has stories like this*
Reposted by Daniel Feshbach
He was a devout Christian and quoted the New Testament "synagogue of Satan" as part of his confession.
It is not harmless to repeat the anti-Jewish rhetoric that is written in Christian scripture.
mississippitoday.org/2026/01/12/m...
It is not harmless to repeat the anti-Jewish rhetoric that is written in Christian scripture.
mississippitoday.org/2026/01/12/m...
Suspect in Mississippi synagogue fire laughed as he confessed to his dad, authorities say - Mississippi Today
The man suspected of setting fire to Mississippi’s largest synagogue allegedly confessed his crimes to law enforcement and referred to the building in northeast Jackson as the “synagogue of Satan,” ac...
mississippitoday.org
January 12, 2026 at 9:03 PM
He was a devout Christian and quoted the New Testament "synagogue of Satan" as part of his confession.
It is not harmless to repeat the anti-Jewish rhetoric that is written in Christian scripture.
mississippitoday.org/2026/01/12/m...
It is not harmless to repeat the anti-Jewish rhetoric that is written in Christian scripture.
mississippitoday.org/2026/01/12/m...
Reposted by Daniel Feshbach
Video message from Federal Reserve Chair Jerome H. Powell:
www.youtube.com/watch?v=KckG...
www.federalreserve.gov/newsevents/s...
www.youtube.com/watch?v=KckG...
www.federalreserve.gov/newsevents/s...
Statement by Federal Reserve Chair Jerome H. Powell
YouTube video by Federal Reserve
www.youtube.com
January 12, 2026 at 12:35 AM
Video message from Federal Reserve Chair Jerome H. Powell:
www.youtube.com/watch?v=KckG...
www.federalreserve.gov/newsevents/s...
www.youtube.com/watch?v=KckG...
www.federalreserve.gov/newsevents/s...
Reposted by Daniel Feshbach
This is stunning. Listen to this in Philadelphia.
Thousands singing “Hey-Oh, we won’t be silent while our friends are gunned down.”
Really listen to it.
Thousands singing “Hey-Oh, we won’t be silent while our friends are gunned down.”
Really listen to it.
January 11, 2026 at 4:55 AM
This is stunning. Listen to this in Philadelphia.
Thousands singing “Hey-Oh, we won’t be silent while our friends are gunned down.”
Really listen to it.
Thousands singing “Hey-Oh, we won’t be silent while our friends are gunned down.”
Really listen to it.
Reposted by Daniel Feshbach
So GPT5.2 has imposter syndrome? It really is Ph.D.-level intelligence!
January 11, 2026 at 12:21 PM
So GPT5.2 has imposter syndrome? It really is Ph.D.-level intelligence!
Reposted by Daniel Feshbach
There’s a GoFundMe for Jonathan Ross’s legal expenses for murdering Renee Good.
This violates GoFundMe’s Terms of Service. Everyone must report it.
A thread on how to do that 🧵
This violates GoFundMe’s Terms of Service. Everyone must report it.
A thread on how to do that 🧵
January 11, 2026 at 7:53 AM
There’s a GoFundMe for Jonathan Ross’s legal expenses for murdering Renee Good.
This violates GoFundMe’s Terms of Service. Everyone must report it.
A thread on how to do that 🧵
This violates GoFundMe’s Terms of Service. Everyone must report it.
A thread on how to do that 🧵
Reposted by Daniel Feshbach
Didn't have "the Mercator projection will cause the end of the world" on my bingo chart
January 11, 2026 at 2:55 AM
Didn't have "the Mercator projection will cause the end of the world" on my bingo chart
Reposted by Daniel Feshbach
🧵In my expert opinion as a researcher of vehicle ramming attacks, what has been publicly described in the video evidence does not support the claim that Renee Nicole Good was attempting a deliberate ramming attack when she was shot in Minneapolis on January 7, 2026. 1/7
January 8, 2026 at 9:13 PM
🧵In my expert opinion as a researcher of vehicle ramming attacks, what has been publicly described in the video evidence does not support the claim that Renee Nicole Good was attempting a deliberate ramming attack when she was shot in Minneapolis on January 7, 2026. 1/7
Reposted by Daniel Feshbach
So when authorities say “she tried to run over an officer,” that is not a neutral description. It is a claim of intent that can be used to justify lethal force after the fact.
When the state kills first and invents the threat afterward, it is not policing, it is death squad behavior. /end
When the state kills first and invents the threat afterward, it is not policing, it is death squad behavior. /end
January 8, 2026 at 9:13 PM
So when authorities say “she tried to run over an officer,” that is not a neutral description. It is a claim of intent that can be used to justify lethal force after the fact.
When the state kills first and invents the threat afterward, it is not policing, it is death squad behavior. /end
When the state kills first and invents the threat afterward, it is not policing, it is death squad behavior. /end
Reposted by Daniel Feshbach
My dude one-hands the whole shooting because he’s got his phone recording in his left hand the whole time.
Never even moves to drop his phone to put a second hand on his pistol BECAUSE HE IS A CONTENT FARMER, NOT A TRAINED LEO.
Never even moves to drop his phone to put a second hand on his pistol BECAUSE HE IS A CONTENT FARMER, NOT A TRAINED LEO.
We've analysed this video of the shooting of Renee Nicole Good yesterday in Minneapolis frame-by-frame to highlight the positioning of the gun and phone in the ICE agent's hands.
Video: @minnesotareformer.com with annotations by Bellingcat
Video: @minnesotareformer.com with annotations by Bellingcat
January 8, 2026 at 7:48 PM
My dude one-hands the whole shooting because he’s got his phone recording in his left hand the whole time.
Never even moves to drop his phone to put a second hand on his pistol BECAUSE HE IS A CONTENT FARMER, NOT A TRAINED LEO.
Never even moves to drop his phone to put a second hand on his pistol BECAUSE HE IS A CONTENT FARMER, NOT A TRAINED LEO.
Reposted by Daniel Feshbach
Martin Peterson's creative response to being banned from teaching Plato (shared with his permission).
January 8, 2026 at 5:38 PM
Martin Peterson's creative response to being banned from teaching Plato (shared with his permission).
Reposted by Daniel Feshbach
“The Party told you to reject the evidence of your eyes and ears. It was their final, most essential command.” —George Orwell, 1984
Trump defends the ICE agent who shot and killed a woman in Minneapolis.
Video footage does not support Trump's claims.
Video footage does not support Trump's claims.
January 7, 2026 at 9:14 PM
“The Party told you to reject the evidence of your eyes and ears. It was their final, most essential command.” —George Orwell, 1984
Reposted by Daniel Feshbach
It's certainly pretty brazen to say "they lied about you Daniel," in a post where you're lying about Daniel Biss.
Silverio Villegas González. Kilmar Abrego Garcia. Mahmoud Khalil. Marimar Martinez. And thousands of names I cannot fit in a single post.
ICE, DHS, and CBP lied about all of them. They lied about you, Daniel, and they lied about me.
If you want to lead in 2026, it’s time to stop believing them.
ICE, DHS, and CBP lied about all of them. They lied about you, Daniel, and they lied about me.
If you want to lead in 2026, it’s time to stop believing them.
January 7, 2026 at 11:47 PM
It's certainly pretty brazen to say "they lied about you Daniel," in a post where you're lying about Daniel Biss.
Reposted by Daniel Feshbach
FYI, on the Minneapolis shooting video: Bluesky hasn't taken it down. It's been labeled as "graphic media" so that people can avoid it if they choose.
You can change your personal settings on whether you see media labeled as graphic (or whether it appears with a warning) here: bsky.app/moderation
You can change your personal settings on whether you see media labeled as graphic (or whether it appears with a warning) here: bsky.app/moderation
Are people unable to watch this now bc it's been tagged as graphic media? Because this is newsworthy and important and that seems like a problem to me.
January 7, 2026 at 7:19 PM
FYI, on the Minneapolis shooting video: Bluesky hasn't taken it down. It's been labeled as "graphic media" so that people can avoid it if they choose.
You can change your personal settings on whether you see media labeled as graphic (or whether it appears with a warning) here: bsky.app/moderation
You can change your personal settings on whether you see media labeled as graphic (or whether it appears with a warning) here: bsky.app/moderation
Reposted by Daniel Feshbach
There really is no question this is an unequivocal murder. The officer fires 3 shots at the car. This still is taken before he fires the last 2 of those 3 shots: He is CLEARLY out of the car's path of travel, and in no danger whatsoever.
This is murder
This is murder
January 7, 2026 at 6:55 PM
There really is no question this is an unequivocal murder. The officer fires 3 shots at the car. This still is taken before he fires the last 2 of those 3 shots: He is CLEARLY out of the car's path of travel, and in no danger whatsoever.
This is murder
This is murder