Rangachari Anand
@2sk22.bsky.social
Retired AI researcher: worked at IBM research and other places. Now plays with model trains and robots.
Reposted by Rangachari Anand
Most people working in the cutting edge of AI seem to have no long-term plan for their unsustainable work habits.
October 25, 2025 at 5:54 PM
Most people working in the cutting edge of AI seem to have no long-term plan for their unsustainable work habits.
After a long gap, another layout update. Just finished the roads on the far end of the layout in the industrial area. Now to get on with adding textures #modeltrains
August 25, 2025 at 2:14 PM
After a long gap, another layout update. Just finished the roads on the far end of the layout in the industrial area. Now to get on with adding textures #modeltrains
Reposted by Rangachari Anand
Some notes on the insecurity baked into Perplexity's Comet "AI Browser" - the Brave security team reported serious prompt injection vulnerabilities in it, but Brave themselves are developing a similar feature that looks doomed to have similar problems simonwillison.net/2025/Aug/25/...
Agentic Browser Security: Indirect Prompt Injection in Perplexity Comet
The security team from Brave took a look at Comet, the LLM-powered "agentic browser" extension from Perplexity, and unsurprisingly found security holes you can drive a truck through. The vulnerability...
simonwillison.net
August 25, 2025 at 9:42 AM
Some notes on the insecurity baked into Perplexity's Comet "AI Browser" - the Brave security team reported serious prompt injection vulnerabilities in it, but Brave themselves are developing a similar feature that looks doomed to have similar problems simonwillison.net/2025/Aug/25/...
Reposted by Rangachari Anand
I made a snarky Western list to show how far behind we are in fostering an ecosystem vis a vis China.
August 18, 2025 at 1:45 PM
I made a snarky Western list to show how far behind we are in fostering an ecosystem vis a vis China.
Reposted by Rangachari Anand
14/16
The important point here is that when an economy invests $100 of resources in a project that creates more than $100 in economic value, it becomes richer. If the project creates less than $100 in economic value, it becomes poorer.
The important point here is that when an economy invests $100 of resources in a project that creates more than $100 in economic value, it becomes richer. If the project creates less than $100 in economic value, it becomes poorer.
August 15, 2025 at 6:23 AM
14/16
The important point here is that when an economy invests $100 of resources in a project that creates more than $100 in economic value, it becomes richer. If the project creates less than $100 in economic value, it becomes poorer.
The important point here is that when an economy invests $100 of resources in a project that creates more than $100 in economic value, it becomes richer. If the project creates less than $100 in economic value, it becomes poorer.
Reposted by Rangachari Anand
Is it "bad" that everyone is distilling from / training on Chinese models? While not directly bad, there is a large soft power component.
Many completions that soapbox about Chinese socialist ideals / PRC values that filter into future AI models / spread all over the internet.
Many completions that soapbox about Chinese socialist ideals / PRC values that filter into future AI models / spread all over the internet.
July 17, 2025 at 9:32 PM
Is it "bad" that everyone is distilling from / training on Chinese models? While not directly bad, there is a large soft power component.
Many completions that soapbox about Chinese socialist ideals / PRC values that filter into future AI models / spread all over the internet.
Many completions that soapbox about Chinese socialist ideals / PRC values that filter into future AI models / spread all over the internet.
The commercial area on my layout is coming together. I added an oil depot #modeltrains
July 17, 2025 at 6:47 PM
The commercial area on my layout is coming together. I added an oil depot #modeltrains
After reading @natolambert.bsky.social ‘s latest article on Kimi, I’m more baffled than ever on how much money Meta is spending!
July 14, 2025 at 6:37 PM
After reading @natolambert.bsky.social ‘s latest article on Kimi, I’m more baffled than ever on how much money Meta is spending!
Got the shopping center and Dairy Queen in place on the layout. It’s clear I’ll need to add a lot of trees in this area #modeltrains
July 13, 2025 at 11:26 PM
Got the shopping center and Dairy Queen in place on the layout. It’s clear I’ll need to add a lot of trees in this area #modeltrains
Finished with base textures on the scene divider hill and added gravel to the roadway going up the hill. Tried out the wind turbine to see how it looks . I’m pleased with it overall #modeltrains
July 9, 2025 at 10:24 AM
Finished with base textures on the scene divider hill and added gravel to the roadway going up the hill. Tried out the wind turbine to see how it looks . I’m pleased with it overall #modeltrains
Some of the more expensive textures I use. Grass tufts by Martin Welberg (Netherlands) and foliage mats by Heki (Germany) . These absolutely look the best in my opinion. Walthers does offer some decent weed clumps too #modeltrains
July 8, 2025 at 12:14 PM
Some of the more expensive textures I use. Grass tufts by Martin Welberg (Netherlands) and foliage mats by Heki (Germany) . These absolutely look the best in my opinion. Walthers does offer some decent weed clumps too #modeltrains
A few more pics of the layout #modeltrains
July 8, 2025 at 11:33 AM
A few more pics of the layout #modeltrains
I’ve been busy adding texture to the layout. It really helps to have a wide palette of textures. I use ground foam, static grass, and foliage nets #modeltrains
July 7, 2025 at 10:37 PM
I’ve been busy adding texture to the layout. It really helps to have a wide palette of textures. I use ground foam, static grass, and foliage nets #modeltrains
After ballasting half the tracks in the layout with actual rock from Arizona Rock & Mineral, I’ve switched back to good old Woodland Scenics #modeltrains WS ballast is much coarser and is less likely to get caught in turnout mechanisms.
July 2, 2025 at 12:23 PM
After ballasting half the tracks in the layout with actual rock from Arizona Rock & Mineral, I’ve switched back to good old Woodland Scenics #modeltrains WS ballast is much coarser and is less likely to get caught in turnout mechanisms.
Reposted by Rangachari Anand
I imagined the Chatsubo in 1984. 41 years later I opened its door. Neuromancer is in production.
July 1, 2025 at 7:14 PM
I imagined the Chatsubo in 1984. 41 years later I opened its door. Neuromancer is in production.
Reposted by Rangachari Anand
"The 80s was the first time that young guys could make a lot of money fast. Never existed before. And it has poisoned our culture to this day. It’s poison.” -Jerry Seinfeld
Thoughts on the potential downsides of becoming rich when you're young:
awealthofcommonsense.com/2025/06/how-...
Thoughts on the potential downsides of becoming rich when you're young:
awealthofcommonsense.com/2025/06/how-...
How to Get Rich When You're Young - A Wealth of Common Sense
Some thoughts on how young people can build wealth.
awealthofcommonsense.com
June 30, 2025 at 3:12 PM
"The 80s was the first time that young guys could make a lot of money fast. Never existed before. And it has poisoned our culture to this day. It’s poison.” -Jerry Seinfeld
Thoughts on the potential downsides of becoming rich when you're young:
awealthofcommonsense.com/2025/06/how-...
Thoughts on the potential downsides of becoming rich when you're young:
awealthofcommonsense.com/2025/06/how-...
Completed the basic ground cover on about 1/4th of the layout. Still need to add shrubs and trees and a lot of details including building lighting
June 20, 2025 at 6:56 PM
Completed the basic ground cover on about 1/4th of the layout. Still need to add shrubs and trees and a lot of details including building lighting
Scenery work is proceeding on the layout. One of my favorite components are these grass mats from Martin Welberg Scenic Stdios in the Netherlands. You just pull out clumps with tweezers and stick them on the layout #modeltrains
June 20, 2025 at 12:42 PM
Scenery work is proceeding on the layout. One of my favorite components are these grass mats from Martin Welberg Scenic Stdios in the Netherlands. You just pull out clumps with tweezers and stick them on the layout #modeltrains
The residential area is coming along nicely. I used the static grass applicator and it worked really well with Noch 2mm static grass. #modeltrains
June 17, 2025 at 7:22 PM
The residential area is coming along nicely. I used the static grass applicator and it worked really well with Noch 2mm static grass. #modeltrains
In contrast to my current N-scale project, I used Atlas flex track and turnouts on my HO scale switching layout. Ballasting that track, especially the turnouts was a lot more challenging but fun #modeltrains
June 15, 2025 at 8:38 PM
In contrast to my current N-scale project, I used Atlas flex track and turnouts on my HO scale switching layout. Ballasting that track, especially the turnouts was a lot more challenging but fun #modeltrains
It’s just amazing how much of an improvement you get by just painting the rails. I use this rust colored paint from Micromark applied with a fine brush #modeltrains
June 15, 2025 at 4:28 PM
It’s just amazing how much of an improvement you get by just painting the rails. I use this rust colored paint from Micromark applied with a fine brush #modeltrains
Soldering all non-insulated track joiners before painting the track. Long experience has taught me that this is essential. You just can’t depend on the conductivity of track joiners. #modeltrains
June 15, 2025 at 2:23 PM
Soldering all non-insulated track joiners before painting the track. Long experience has taught me that this is essential. You just can’t depend on the conductivity of track joiners. #modeltrains
Starting to add textures to the scenery. This is the first time I’m using actual stone ballast. Needs another pass of ballasting to shape the shoulder #modeltrains (That’s Kato Unitrack incidentally)
June 15, 2025 at 9:54 AM
Starting to add textures to the scenery. This is the first time I’m using actual stone ballast. Needs another pass of ballasting to shape the shoulder #modeltrains (That’s Kato Unitrack incidentally)
Having a wide range of ground cover - colors and textures really helps when working on scenery
June 11, 2025 at 1:16 PM
Having a wide range of ground cover - colors and textures really helps when working on scenery
Started to add texture and color to one corner of the layout #modeltrains
June 11, 2025 at 1:14 PM
Started to add texture and color to one corner of the layout #modeltrains