Matt Crespi
@mattcrespi.bsky.social
Social scientist. Researcher of networks, policy, and innovation. Enthusiast of maps, graphs and sandwiches. Former top 25 duck chess player.
Is there any way to opt out of my apps updating with Christmas themed icons? Like I'm not allowed to be Jewish on my own phone?
January 11, 2026 at 4:44 AM
Is there any way to opt out of my apps updating with Christmas themed icons? Like I'm not allowed to be Jewish on my own phone?
This is really amazing and also means we need to quickly reevaluate a lot of "known" findings.
Especially problematic because I can't even remember which facts in my head come from mturk studies!
Especially problematic because I can't even remember which facts in my head come from mturk studies!
The implication is severe: careless responding on MTurk isn’t rare noise; it’s systematic enough to flip the sign of relationships and generate results that are the opposite of what they really are.
Wow; this is pretty damning.
link.springer.com/article/10.3...
Wow; this is pretty damning.
link.springer.com/article/10.3...
January 9, 2026 at 1:15 AM
This is really amazing and also means we need to quickly reevaluate a lot of "known" findings.
Especially problematic because I can't even remember which facts in my head come from mturk studies!
Especially problematic because I can't even remember which facts in my head come from mturk studies!
Important, valid, and distressing confirmation of discrimination against mothers.
I know #FollowFriday isn't for four more hours, but give Professor Holbein a follow anyway. He's truly excellent at curating and explaining research that's interesting and/or important.
I know #FollowFriday isn't for four more hours, but give Professor Holbein a follow anyway. He's truly excellent at curating and explaining research that's interesting and/or important.
These authors wanted to know whether mothers face discrimination in hiring, even when they are equally qualified as other applicants.
So they ran two experiments...
So they ran two experiments...
January 9, 2026 at 1:12 AM
Important, valid, and distressing confirmation of discrimination against mothers.
I know #FollowFriday isn't for four more hours, but give Professor Holbein a follow anyway. He's truly excellent at curating and explaining research that's interesting and/or important.
I know #FollowFriday isn't for four more hours, but give Professor Holbein a follow anyway. He's truly excellent at curating and explaining research that's interesting and/or important.
Found a theme for my New Years Party.
December 14, 2025 at 5:07 AM
Found a theme for my New Years Party.
Might get a little flu shot bullseye tattooed on one arm. This is really neat.
Fascinating article on tattoo + vaccine interactions.
For SOME vaccines (like covid), immune response was lower when injected into tattoos. For OTHERS, (like flu), the immune response = higher!
Different formulations of vaccines interact with tattoo ink differently 🤯
www.pnas.org/doi/epdf/10....
For SOME vaccines (like covid), immune response was lower when injected into tattoos. For OTHERS, (like flu), the immune response = higher!
Different formulations of vaccines interact with tattoo ink differently 🤯
www.pnas.org/doi/epdf/10....
November 28, 2025 at 6:56 PM
Might get a little flu shot bullseye tattooed on one arm. This is really neat.
Philly Icarus
Oh god I ate a gobbler too bodacious and now my stomach hurts what have I done
November 26, 2025 at 10:28 PM
Philly Icarus
Got our 2026 nature calendar from Meg Lemieur and @sarahmackattack.bsky.social, and it is amazing. Beautiful, funny, interesting, and even emotionally moving. When the year is over, we are going to be saving many of these pictures. Highly recommend.
November 15, 2025 at 5:18 PM
Got our 2026 nature calendar from Meg Lemieur and @sarahmackattack.bsky.social, and it is amazing. Beautiful, funny, interesting, and even emotionally moving. When the year is over, we are going to be saving many of these pictures. Highly recommend.
With Microsoft launching a new AI-powered Clippy, I'm going to double down on this joke.
Clippy walked so Copilot could also walk.
October 29, 2025 at 11:15 PM
With Microsoft launching a new AI-powered Clippy, I'm going to double down on this joke.
TIL Wegmans has a cheese-aging facility containing 7 large rooms, each replicating the climate of a different European cheese cave. They partner with cheesemakers (many local to their region), then make unique collaborative products with their aging process.
www.wegmans.com/cheese-caves
www.wegmans.com/cheese-caves
Cheese Caves - Wegmans
For over a decade, we’ve proudly sourced the best artisan cheeses from around the world and ripened them to perfection in our Cheese Caves in Rochester, NY.
www.wegmans.com
October 29, 2025 at 5:40 PM
TIL Wegmans has a cheese-aging facility containing 7 large rooms, each replicating the climate of a different European cheese cave. They partner with cheesemakers (many local to their region), then make unique collaborative products with their aging process.
www.wegmans.com/cheese-caves
www.wegmans.com/cheese-caves
Great idea, and remember, the best thing to give a food bank is money. They can buy groceries cheaper than you can, and they know their inventory and needs better. If you have extra food items to donate, by all means, but don't go buy things specifically for a food bank. Give them the $ directly!
If you are able to, please contribute to your local food bank this week
October 28, 2025 at 9:43 PM
Great idea, and remember, the best thing to give a food bank is money. They can buy groceries cheaper than you can, and they know their inventory and needs better. If you have extra food items to donate, by all means, but don't go buy things specifically for a food bank. Give them the $ directly!
Me, pulling out my fancy chef's knife to chop vegetables:
October 8, 2025 at 6:28 PM
Me, pulling out my fancy chef's knife to chop vegetables:
Every town needs a blogblog.
the hyperlocal civics blog i cofounded with friends help increase voter turnout in my community (in 2023) by almost 30%. i’m not involved much these days but anyone can make a blogblog.
September 25, 2025 at 10:23 PM
Every town needs a blogblog.
Not to be that guy, but you can get them for a third this price at Costco.
September 25, 2025 at 1:55 AM
Not to be that guy, but you can get them for a third this price at Costco.
How does everybody feel about this?
it's ok to not have a take on everything
August 20, 2025 at 3:06 PM
How does everybody feel about this?
Just found out my tailor planted a bomb in his own shop as part of a ruse to avoid an actual assassination attempt, so you can't convince me that crime isn't up.
August 12, 2025 at 5:10 PM
Just found out my tailor planted a bomb in his own shop as part of a ruse to avoid an actual assassination attempt, so you can't convince me that crime isn't up.
Nobody will get this reference, but serious Sleve McDichael vibes from GPT-5.
August 9, 2025 at 1:22 AM
Nobody will get this reference, but serious Sleve McDichael vibes from GPT-5.
Rule of Claw
Watchdog Group Downgrades U.S. From Democracy To Whatever Political System Lobsters Have theonion.com/watchdo...
August 6, 2025 at 7:27 PM
Rule of Claw
LLM usage in academic literature reviews will be an absolute bonanza for authors who have zero citations due to academia's strong bias towards papers that exist.
On the one hand, LLM's are likeliest to know about papers that have been summarized well tens or hundreds of times, and suggest them appropriately.
On the other hand, their use crowds out asking a colleague, and the colleague might be even more likely to name a seminal/focal paper.
On the other hand, their use crowds out asking a colleague, and the colleague might be even more likely to name a seminal/focal paper.
August 1, 2025 at 4:04 PM
LLM usage in academic literature reviews will be an absolute bonanza for authors who have zero citations due to academia's strong bias towards papers that exist.
Pittsburgh seems to be on pace to quite accidentally have their 2nd successful "defund the police" movement. (The 1st being when they stopped making police do medical transport and adopted the model of a local nonprofit to scale up ambulance and EMT services, which we know now is way better.)
August 1, 2025 at 3:57 PM
Pittsburgh seems to be on pace to quite accidentally have their 2nd successful "defund the police" movement. (The 1st being when they stopped making police do medical transport and adopted the model of a local nonprofit to scale up ambulance and EMT services, which we know now is way better.)
Reposted by Matt Crespi
I wrote up a protocol for running art + activism events like Climate Change Crafting Night.
We need more community, & we need people feeling empowered to take action and not just curl up in a despondent ball. Help them find the energy with art & community!
Protocol: docs.google.com/document/d/1...
We need more community, & we need people feeling empowered to take action and not just curl up in a despondent ball. Help them find the energy with art & community!
Protocol: docs.google.com/document/d/1...
Activism Art Nights Protocol
Protocol: Activism Art Nights By Sarah McAnulty, Ph.D., Skype a Scientist Last updated July 25, 2025 In the moment we’re living in, people need community more than ever. There are many problems for p...
docs.google.com
July 28, 2025 at 2:32 PM
I wrote up a protocol for running art + activism events like Climate Change Crafting Night.
We need more community, & we need people feeling empowered to take action and not just curl up in a despondent ball. Help them find the energy with art & community!
Protocol: docs.google.com/document/d/1...
We need more community, & we need people feeling empowered to take action and not just curl up in a despondent ball. Help them find the energy with art & community!
Protocol: docs.google.com/document/d/1...
Reposted by Matt Crespi
Hey Philly! If you like art & the environment please repost this!
On Wednesday we’re getting together for climate change crafting night! We’ll learn about actions all of us can advocate for to slow climate change, then make some art to share that information with others!
RSVP here lu.ma/edq742p1
On Wednesday we’re getting together for climate change crafting night! We’ll learn about actions all of us can advocate for to slow climate change, then make some art to share that information with others!
RSVP here lu.ma/edq742p1
Climate Change Crafting Night · Luma
Addressing climate change can feel overwhelming! Come learn what we can do to address it in Philadelphia, and make art to spread the word.
All supplies will be…
lu.ma
July 21, 2025 at 1:55 PM
Hey Philly! If you like art & the environment please repost this!
On Wednesday we’re getting together for climate change crafting night! We’ll learn about actions all of us can advocate for to slow climate change, then make some art to share that information with others!
RSVP here lu.ma/edq742p1
On Wednesday we’re getting together for climate change crafting night! We’ll learn about actions all of us can advocate for to slow climate change, then make some art to share that information with others!
RSVP here lu.ma/edq742p1
A lot of things have been terrible since March, 2020, and while I know correlation is not causation, it's pretty interesting that that's exactly when McDonald's stopped serving all day breakfast.
July 18, 2025 at 6:23 PM
A lot of things have been terrible since March, 2020, and while I know correlation is not causation, it's pretty interesting that that's exactly when McDonald's stopped serving all day breakfast.
Maybe people would be more likely to wear a mask or take other precautions if they knew that "post-COVID alcohol intolerance" was one of the possible outcomes.
I was at a networking event last week. First time I’ve seen the caterer offer a “signature mocktail.” Happy to see this bc I can’t tolerate alcohol much anymore. But also a sign of the times? 👀 www.buzzfeednews.com/article/kati...
Long COVID Might Ruin Booze For You
“I just really, really struggled if I had one drink. I would wake up so hungover, terrible headaches, and super tired. It was so bizarre.”
www.buzzfeednews.com
July 16, 2025 at 7:19 PM
Maybe people would be more likely to wear a mask or take other precautions if they knew that "post-COVID alcohol intolerance" was one of the possible outcomes.
Clippy walked so Copilot could also walk.
July 16, 2025 at 7:05 PM
Clippy walked so Copilot could also walk.
OK, here's my movie pitch. Star Trek: The Hangover, in which the cast of Lower Decks minus Boimler wakes up after a night of drinking Romulan ale and has to backtrack through their previous day to find out where he is.
July 15, 2025 at 10:34 PM
OK, here's my movie pitch. Star Trek: The Hangover, in which the cast of Lower Decks minus Boimler wakes up after a night of drinking Romulan ale and has to backtrack through their previous day to find out where he is.