Alex Sweeney
@alexjs.dev
Math, cosmology, biology, geology, photography enthusiast and software engineer. They/them
I'm not going to argue with you.
I'm not going to argue with you.
Reposted by Alex Sweeney
Starbucks is closing stores and cutting 900 jobs in a restructuring move.
1,100 jobs were slashed earlier this year.
Reminder that Starbucks’ CEO made 6,666x more than the company's median employee in 2024.
This was the widest CEO-to-Worker pay gap in the entire S&P 500.
1,100 jobs were slashed earlier this year.
Reminder that Starbucks’ CEO made 6,666x more than the company's median employee in 2024.
This was the widest CEO-to-Worker pay gap in the entire S&P 500.
September 25, 2025 at 10:01 PM
Starbucks is closing stores and cutting 900 jobs in a restructuring move.
1,100 jobs were slashed earlier this year.
Reminder that Starbucks’ CEO made 6,666x more than the company's median employee in 2024.
This was the widest CEO-to-Worker pay gap in the entire S&P 500.
1,100 jobs were slashed earlier this year.
Reminder that Starbucks’ CEO made 6,666x more than the company's median employee in 2024.
This was the widest CEO-to-Worker pay gap in the entire S&P 500.
figure.game
Figure #1180
🥇 1 try
😎 No hints
After weeks of needing 20+ tries, I finally got it in just 1.
Figure #1180
🥇 1 try
😎 No hints
After weeks of needing 20+ tries, I finally got it in just 1.
Figure
Figure is a daily logic puzzle game, free to play right in your browser. Clear all the tiles before running out of moves!
figure.game
September 19, 2025 at 12:15 AM
figure.game
Figure #1180
🥇 1 try
😎 No hints
After weeks of needing 20+ tries, I finally got it in just 1.
Figure #1180
🥇 1 try
😎 No hints
After weeks of needing 20+ tries, I finally got it in just 1.
ajs1998.github.io/double-pendu...
I made a simulator to explore the space of double pendulums! It runs in your browser with WebGPU, and it's very fast!
I wrote a little about it here: alex.leaflet.pub/3lxizbtwyg22d
I made a simulator to explore the space of double pendulums! It runs in your browser with WebGPU, and it's very fast!
I wrote a little about it here: alex.leaflet.pub/3lxizbtwyg22d
Simulation steps per second
ajs1998.github.io
August 29, 2025 at 2:32 AM
ajs1998.github.io/double-pendu...
I made a simulator to explore the space of double pendulums! It runs in your browser with WebGPU, and it's very fast!
I wrote a little about it here: alex.leaflet.pub/3lxizbtwyg22d
I made a simulator to explore the space of double pendulums! It runs in your browser with WebGPU, and it's very fast!
I wrote a little about it here: alex.leaflet.pub/3lxizbtwyg22d
I always regret putting comments at the end of a line of code rather than on its own line above, and I do it ALL the time anyway.
Learning C early on made me overprioritize code golf and I hate it. Err on the side of verbosity. Newlines cost nothing. Abbreviations suck. Comments are rad. </mantras>
Learning C early on made me overprioritize code golf and I hate it. Err on the side of verbosity. Newlines cost nothing. Abbreviations suck. Comments are rad. </mantras>
August 22, 2025 at 12:54 AM
I always regret putting comments at the end of a line of code rather than on its own line above, and I do it ALL the time anyway.
Learning C early on made me overprioritize code golf and I hate it. Err on the side of verbosity. Newlines cost nothing. Abbreviations suck. Comments are rad. </mantras>
Learning C early on made me overprioritize code golf and I hate it. Err on the side of verbosity. Newlines cost nothing. Abbreviations suck. Comments are rad. </mantras>
The chatbot interface for LLMs is such a dishonest product with the illusion of competency. LLMs (the technology) are super cool and obviously competent at some things. But the AI chatbot (product) built with LLMs tricks its users into believing a human-like thing is on the other end.
Didn’t want to believe this was true. It’s true.
August 7, 2025 at 11:17 PM
The chatbot interface for LLMs is such a dishonest product with the illusion of competency. LLMs (the technology) are super cool and obviously competent at some things. But the AI chatbot (product) built with LLMs tricks its users into believing a human-like thing is on the other end.
Read: "NASA staff and funding have been cut, and Trump-appointed interim administrator #2 decides not to prioritize worthy technology."
Nuclear power on the moon sounds good to me, so does nuclear propulsion. We can have both, AND good social programs. Trump contaminates everything he touches.
Nuclear power on the moon sounds good to me, so does nuclear propulsion. We can have both, AND good social programs. Trump contaminates everything he touches.
August 5, 2025 at 12:36 AM
Read: "NASA staff and funding have been cut, and Trump-appointed interim administrator #2 decides not to prioritize worthy technology."
Nuclear power on the moon sounds good to me, so does nuclear propulsion. We can have both, AND good social programs. Trump contaminates everything he touches.
Nuclear power on the moon sounds good to me, so does nuclear propulsion. We can have both, AND good social programs. Trump contaminates everything he touches.
I'm realizing that being a Trump supporter or a transphobe are both instant cancels for me. Beloved celebrities, friends, family, whoever. I can't forgive myself if I treat them with respect. There's no other quality that could redeem them. They're incompatible with a good world.
August 2, 2025 at 12:30 AM
I'm realizing that being a Trump supporter or a transphobe are both instant cancels for me. Beloved celebrities, friends, family, whoever. I can't forgive myself if I treat them with respect. There's no other quality that could redeem them. They're incompatible with a good world.
Reposted by Alex Sweeney
Starbucks had the worst CEO-to-worker pay ratio out of all S&P 500 companies in 2024. Their CEO received $97,813,843 in total compensation last year, or 6,666x more than Starbucks’ median employee.
We stand with @sbworkersunited.org as they fight for their fair share.
We stand with @sbworkersunited.org as they fight for their fair share.
July 23, 2025 at 5:46 PM
Starbucks had the worst CEO-to-worker pay ratio out of all S&P 500 companies in 2024. Their CEO received $97,813,843 in total compensation last year, or 6,666x more than Starbucks’ median employee.
We stand with @sbworkersunited.org as they fight for their fair share.
We stand with @sbworkersunited.org as they fight for their fair share.
This is why I can't engage with people who see AI as a black and white moral thing. This is an incredible achievement after just a few years of research. There's no telling how exactly AI will affect the world, and it boggles my mind that many people claim to know it must be all bad.
July 21, 2025 at 6:00 PM
This is why I can't engage with people who see AI as a black and white moral thing. This is an incredible achievement after just a few years of research. There's no telling how exactly AI will affect the world, and it boggles my mind that many people claim to know it must be all bad.
Plurality-wins voting and the electoral college have made everyone crazy. America is a broken democracy and it won't be fixed until voting is more involved than choosing between one of two morons every 4 years.
July 16, 2025 at 1:43 AM
Plurality-wins voting and the electoral college have made everyone crazy. America is a broken democracy and it won't be fixed until voting is more involved than choosing between one of two morons every 4 years.
The time between 4AM to 8AM occupies the same space in my brain. It's all just "morning" to me. But now that I have to wake up early I realize that's a whole 4 hours I'd normally sleep right through. Now 1/4 of my awake hours.
:(
:(
July 11, 2025 at 3:49 AM
The time between 4AM to 8AM occupies the same space in my brain. It's all just "morning" to me. But now that I have to wake up early I realize that's a whole 4 hours I'd normally sleep right through. Now 1/4 of my awake hours.
:(
:(
I need to know everything about crochet. I understand how to do it, but I don't get why certain stitches result in different shapes and angles. how do people go from an idea in their head to a physical thing made of yarn?? let me engineer crocheting
July 8, 2025 at 4:27 AM
I need to know everything about crochet. I understand how to do it, but I don't get why certain stitches result in different shapes and angles. how do people go from an idea in their head to a physical thing made of yarn?? let me engineer crocheting
The Browser Company saw that browsers were stagnant and boring, so they built Arc which is fun and has cool features!
*1 year later*
TBC finds that Arc is stagnant and boring, so they're building Dia which will be fun and have AI and cool features!
Long live Zen.
*1 year later*
TBC finds that Arc is stagnant and boring, so they're building Dia which will be fun and have AI and cool features!
Long live Zen.
June 27, 2025 at 2:48 AM
The Browser Company saw that browsers were stagnant and boring, so they built Arc which is fun and has cool features!
*1 year later*
TBC finds that Arc is stagnant and boring, so they're building Dia which will be fun and have AI and cool features!
Long live Zen.
*1 year later*
TBC finds that Arc is stagnant and boring, so they're building Dia which will be fun and have AI and cool features!
Long live Zen.
American voting explained: America style
There are 2 guns on the ballot. You get to vote for which gun gets to shoot the other gun in the face. The gun college gives all the bullets to the winning gun.
The next election is in 2 years. This is the only way to express your political desires.
There are 2 guns on the ballot. You get to vote for which gun gets to shoot the other gun in the face. The gun college gives all the bullets to the winning gun.
The next election is in 2 years. This is the only way to express your political desires.
June 18, 2025 at 3:50 AM
American voting explained: America style
There are 2 guns on the ballot. You get to vote for which gun gets to shoot the other gun in the face. The gun college gives all the bullets to the winning gun.
The next election is in 2 years. This is the only way to express your political desires.
There are 2 guns on the ballot. You get to vote for which gun gets to shoot the other gun in the face. The gun college gives all the bullets to the winning gun.
The next election is in 2 years. This is the only way to express your political desires.
I wish our democracy was a little more direct.
We go to work for almost 1/3 of our waking life to shape the economy. But we vote once every 2-4 years to shape the country, for parties with shitty approximations of our values. Most people don't even vote because it's so pointless.
We go to work for almost 1/3 of our waking life to shape the economy. But we vote once every 2-4 years to shape the country, for parties with shitty approximations of our values. Most people don't even vote because it's so pointless.
June 11, 2025 at 3:56 PM
I wish our democracy was a little more direct.
We go to work for almost 1/3 of our waking life to shape the economy. But we vote once every 2-4 years to shape the country, for parties with shitty approximations of our values. Most people don't even vote because it's so pointless.
We go to work for almost 1/3 of our waking life to shape the economy. But we vote once every 2-4 years to shape the country, for parties with shitty approximations of our values. Most people don't even vote because it's so pointless.
Bluesky should use this as marketing material. They're not censoring anybody, it's just that blocking people actually works here.
My network here is more enjoyable and productive than any other website. I'm not gonna complain about how underrepresented the nazis are. It's their own fault.
My network here is more enjoyable and productive than any other website. I'm not gonna complain about how underrepresented the nazis are. It's their own fault.
I've been asked about my evidence for saying Bluesky is a left-wing bubble. Mostly, my eyes. But here's a striking table from a recent pre-print on Bluesky: the progressive side (A) is extremely dominant in political discussions, to the point where the opposition is often essentially unrepresented.
June 9, 2025 at 11:17 PM
Bluesky should use this as marketing material. They're not censoring anybody, it's just that blocking people actually works here.
My network here is more enjoyable and productive than any other website. I'm not gonna complain about how underrepresented the nazis are. It's their own fault.
My network here is more enjoyable and productive than any other website. I'm not gonna complain about how underrepresented the nazis are. It's their own fault.
The Banach-Tarski paradox is used as an overly complicated example to show how the real numbers are unintuitive.
A clearer example is to just do 2*[0,1]=[0,2]. There's a 1:1 mapping between the numbers in each interval, yet it looks like more area is created from nothing.
#MathSky
A clearer example is to just do 2*[0,1]=[0,2]. There's a 1:1 mapping between the numbers in each interval, yet it looks like more area is created from nothing.
#MathSky
May 28, 2025 at 2:44 AM
The Banach-Tarski paradox is used as an overly complicated example to show how the real numbers are unintuitive.
A clearer example is to just do 2*[0,1]=[0,2]. There's a 1:1 mapping between the numbers in each interval, yet it looks like more area is created from nothing.
#MathSky
A clearer example is to just do 2*[0,1]=[0,2]. There's a 1:1 mapping between the numbers in each interval, yet it looks like more area is created from nothing.
#MathSky
I implemented an algorithm to randomly tile a grid with dominos. Here it is on a torus where they can wrap around the edges like Pacman.
May 27, 2025 at 12:59 AM
I implemented an algorithm to randomly tile a grid with dominos. Here it is on a torus where they can wrap around the edges like Pacman.
Having never played The Last of Us, I've been kinda disappointed with the second season. It's fine, but the storytelling is just weird. I'm led to believe for several episodes that Ellie's blind revenge mode came outta nowhere. The reason came too late and it didn't really land for me.
May 22, 2025 at 3:16 AM
Having never played The Last of Us, I've been kinda disappointed with the second season. It's fine, but the storytelling is just weird. I'm led to believe for several episodes that Ellie's blind revenge mode came outta nowhere. The reason came too late and it didn't really land for me.
Bix won't even know how consequential her decision was. It was the right decision and it couldn't have been any other way.
What a great show. Andor + Rogue One is my favorite star wars story, and it's not even close. They totally nailed it.
What a great show. Andor + Rogue One is my favorite star wars story, and it's not even close. They totally nailed it.
May 14, 2025 at 5:06 AM
Bix won't even know how consequential her decision was. It was the right decision and it couldn't have been any other way.
What a great show. Andor + Rogue One is my favorite star wars story, and it's not even close. They totally nailed it.
What a great show. Andor + Rogue One is my favorite star wars story, and it's not even close. They totally nailed it.
You're telling me the brain worm guy took his family swimming in a sewer water creek? After the first brain worm?
May 13, 2025 at 3:49 AM
You're telling me the brain worm guy took his family swimming in a sewer water creek? After the first brain worm?
Having never cared about Catholicism or religion in general, I didn't expect to be so eager to learn about who would replace Pope Francis. I don't get to pick world/religious leaders, so I just have to hope we get more like Francis and fewer like Trump. Leo seems like a step in the right direction.
May 9, 2025 at 4:36 AM
Having never cared about Catholicism or religion in general, I didn't expect to be so eager to learn about who would replace Pope Francis. I don't get to pick world/religious leaders, so I just have to hope we get more like Francis and fewer like Trump. Leo seems like a step in the right direction.
Rogue One + Andor is the best of Star Wars. Nothing else comes close for me. The S2 finale of Andor isn't even out yet but I know it'll be great.
May 9, 2025 at 12:28 AM
Rogue One + Andor is the best of Star Wars. Nothing else comes close for me. The S2 finale of Andor isn't even out yet but I know it'll be great.
I've been in Diamond in Overwatch for forever and I finally started ranking up again. I hit top 500 yesterday and now I'm literally in a game with Jay3 😭
May 8, 2025 at 2:23 AM
I've been in Diamond in Overwatch for forever and I finally started ranking up again. I hit top 500 yesterday and now I'm literally in a game with Jay3 😭