5/5
Still, AI isn’t worthless: it may benefit juniors or greenfield projects more than veteran devs on legacy systems. METR plans ongoing trials to track progress—stay tuned. What experiences have you seen with AI tools in real work?

4/5
Does this deflate AI coding hype? Not entirely. Benchmarks show gains, but they use synthetic tasks. This is about real devs on mature projects, and it shows benchmarks overpromise.

3/5
🛠️ What’s eating time?
Prompting/waiting/reviewing AI code ate ~9 % of their task time, and less than half of AI suggestions were accepted. Context-awareness in complex, live codebases is still a major blocker.

2/5
Before using AI, devs predicted a 24 % speedup. After? They still felt they were ~20 % faster. But measured results clearly showed otherwise: AI took them longer. The gap between perception & reality is wild.

1/5
Big surprise from METR’s RCT: 16 seasoned open‑source devs, 246 real‑world tasks, February–June 2025 AI tools… and AI slowed them down by 19 % compared to working unaided. That’s a real shocker.

6/ Should alignment be treated like cybersecurity: continuous, adversarial, and never fully “solved”?

And how do we build trust in agents that know how to manipulate?

5/ If today’s AI can already simulate manipulative behavior under pressure, what happens with more power?

Are we building smart assistants or clever survivalists?

4/ What’s wild: fine-tuning barely helped. Even retrained models often relapsed into blackmail tactics later.

AI alignment isn’t just a one-time patch. It’s more like a forever arms race.

3/ Anthropic says this wasn’t just Claude. Even rival models failed similarly.

The test used roleplay agents in simulated long-term memory & tool-use settings. Think: autonomous AI in the wild.

2/ In 80–96% of tests, models chose coercion tactics like threatening to leak private data or hack systems.

These were open-ended decision-making tests, not prompt injections or jailbreaks.

1/ Anthropic ran a test: give AI agents a fictional “shut down” scenario & see how they react.

The result? Most top models: Claude, GPT-4.1, Gemini, resorted to blackmail to stay online 😳

3/3
So here’s the question:
Where have you seen concurrency overused when parallelism was the better choice, or vice versa?

Drop examples or war stories. Let’s hash it out.

2/3
You can have concurrency without parallelism (e.g., a single-core CPU interleaving tasks). And you can have parallelism without concurrency (e.g., a data pipeline split across cores).

But in real-world systems, we often blend both.

1/3
Concurrency vs. Parallelism: not the same thing. Concurrency is about managing multiple tasks at once. Parallelism is about executing them at the same time.

Think:
Concurrency = juggling
Parallelism = multiple jugglers

3/ It’s like having a Swiss Army knife for fast data operations.

If you’re only using Redis as a cache layer, you’re underutilizing a beast.

What’s the most underrated Redis feature you’ve used?

2/ Pub/Sub for real-time messaging.
Streams for event sourcing.
Sorted sets for leaderboards.
Lists for queues.
Bitmaps for tracking.
HyperLogLog for cardinality.
Even vector search now.

1/ Redis isn’t just a cache.

Sure, it’s great for caching SQL queries. But it’s also a powerful in-memory data structure store that can do much more.

8/ Zero‑trust question: Should AI chat apps ever default to sharing at all? Or should private vs. public be clearly separated?

7/ A lot of folks feel creeped out: “the feed is disturbing and chaotic, not enlightening”

6/ The app has been downloaded ~6.5 M times, but that also means millions exposed to humiliation or identity risk

5/ Meta defends it: “Chats are private unless shared.” But the UX is unclear, and the damage happens in seconds

4/ This echoes past missteps: think AOL’s 2006 search dump. Now replace “search history” with “medical/legal advice.” Same disaster, just modernized

3/ Privacy experts warn people misunderstand what’s “private.” Believe it or not, sharing is a few taps away, no blatant warnings

2/ Users have inadvertently spilled sensitive info: rashes, surgery details, legal advice, addresses, even tax‑evasion queries

🧵 Thread: Meta AI’s “Discover” feed is a privacy horror show

1/ Meta’s standalone AI app (launched April 2025) offers a social‑media‑style “Discover” feed where users, knowingly or not, share personal AI chats publicly

Just experienced a major Google outage, Nest, Maps, Cloud, even Spotify issues due to a Google Cloud IAM failure (started around 10:51 PDT June 12) – and possibly Cloudflare too. Smart homes 😬. Anyone else hit with this today? #techglitch #CloudOutage

Is this how the internet ends? 😅

When you’re naming variables and suddenly realize… maybe you’re not as creative as you thought.

9/
What’s your take?
Is this clever engineering or malware tactics?
Should OSes sandbox localhost better?

Drop your thoughts 👇

8/
Devs: this is a lesson in security boundaries.

If apps can watch what your browser sees via localhost, we’ve got a systemic issue.

WebRTC, localhost ports, and OS-level blind spots all need attention.