JD

Enjoy family, building teams, software engineering, being outdoors - "without move 37, we wouldn’t have move 78" #technology #skiing #MountainBiking #hiking

[JD @isme_jd]

@elonmusk Excellent engineering often incorporates true artistry

[JD @isme_jd]

@ispyradio @TinaKotek Plus with mail in ballots there is no anonymity - it's stupid. Everyone should be able to vote with privacy

[Neo Kim @systemdesignone]

If you want to get ahead of 99% of software engineers, learn these system design concepts:

1 Scalability
2 Availability
3 Reliability
4 Latency
5 Throughput
6 Capacity
7 Client-Server
8 Database
9 SQL vs NoSQL
10 Load Balancing
11 Caching
12 Cache Invalidation
13 CDN
14 DNS
15 API Design
16 REST
17 GraphQL
18 gRPC
19 Authentication
20 Authorization
21 Rate Limiting
22 Fault Tolerance
23 High Availability
24 CAP Theorem
25 Consistency Models
26 Replication
27 Partitioning
28 Sharding
29 Indexing
30 Denormalization
31 ACID
32 BASE
33 Microservices
34 Monolith
35 Event-Driven
36 Message Queue
37 Pub/Sub
38 Sync vs Async
39 Idempotency
40 Backpressure
41 Circuit Breaker
42 Bulkhead
43 Retry Logic
44 Timeout
45 Service Discovery
46 API Gateway
47 Load Shedding
48 Autoscaling
49 Blue-Green
50 Canary Release
51 Feature Flags
52 Observability
53 Logging
54 Metrics
55 Tracing
56 Correlation ID
57 Monitoring
58 Alerting
59 Full-Text Search
60 Time Series
61 Vector DB
62 Materialized View
63 Query Optimization
64 Connection Pooling
65 Cache Stampede
66 Cache Warming
67 CDN Caching
68 Data Compression
69 Serialization
70 Deserialization
71 WebSockets
72 WebRTC
73 CQRS
74 Event Sourcing
75 Service Mesh
76 Sidecar
77 BFF
78 Strangler Pattern
79 LSM Trees
80 B-Trees
81 Merkle Trees
82 Bloom Filter
83 HyperLogLog
84 MapReduce
85 Batch Processing
86 Stream Processing
87 ETL
88 Data Pipeline
89 Data Lake
90 Data Warehouse
91 Secrets Management
92 RBAC
93 SSO
94 Encryption
95 Checksum
96 Erasure Coding
97 Consensus
98 Leader Election

...and 16 more concepts.

===

💾 Save & RT to help others master system design.
👤 Follow @systemdesignone + turn on notifications.

[JD @isme_jd]

🤔

[TheNewPhysics @CharlesMullins2]

🚨 SCIENTISTS MAY HAVE JUST BROKEN ONE OF QUANTUM PHYSICS’ MOST SACRED ASSUMPTIONS.

For decades, researchers believed quantum entanglement worked best between identical particles.

Same properties. Same states. Same quantum behavior.
But now scientists have shown something stranger:
Completely different particles can still become quantum connected.

In simple terms:
Reality may care less about what particles ARE…
…and more about how their wavefunctions interact.
That changes everything.

Why this matters:
• new forms of quantum computing
• hybrid quantum networks
• ultra-secure communication
• quantum sensors
• deeper tests of spacetime physics
• possible new routes to scalable quantum machines

The terrifying implication is this:
Quantum entanglement may not be a rare “special effect” between matching particles…
…but a much deeper rule about information itself.
At the smallest scales…
the universe may behave less like isolated objects…
…and more like a connected web of interacting probabilities.

The deeper we probe quantum mechanics…
…the harder it becomes to define where one particle truly ends and another begins.

What if separation itself is only an illusion emerging at larger scales?

Follow for more frontier physics and quantum breakthroughs.

[a16z @a16z]

Marc Andreessen says AI is teaching sand to think and it could be the most important technology in the history of humanity:

"Imagine a form of alchemy that turns sand into thought."

"Chips are made out of sand. They're made out of silicon, so they're literally made out of sand."

"We plug the chip into a data center, into power, we light it up, and we put AI on it, and all of a sudden it's thinking."

"We've turned sand into thought. And so it's possibly the most revolutionary technology in the history of the species."

"It's certainly on par with electricity and steam power. It's certainly more important than the internet."

@pmarca with @joerogan

[JD @isme_jd]

This resonates...

https://t.co/Qsv8WT2ezQ

[Give A Shit About Nature @giveashitnature]

Farmers have figured out that the cheapest pesticide is a strip of flowers.

When you plant wildflowers through a crop field, not just around the edge but in strips running through the middle, you get ladybugs, lacewings, hoverflies, and parasitic wasps living in the field instead of visiting it.

They eat the aphids, the caterpillars, and the mites for free, all summer long.

In controlled trials, fields with tailored flower strips had leaf-beetle numbers 40 to 50% lower and crop damage cut by around 60%, enough to drop below the threshold where spraying was even considered worth it.

The flowers attract a standing army to our fields.

We spent decades engineering chemicals to kill the insects eating the crop, when the insects that eat those insects would have worked for the price of seed.

[Brett Caughran @FundamentEdge]

A big pivot from Ken Griffin on AI:

“Number one is, in the last few months, there has been a step change in the productivity of the AI toolkit. It is profoundly more powerful than it was just nine months ago.

And for us at Citadel, that has allowed us to unleash a much broader array of use cases for AI. And it has been really interesting to watch, to be blunt, work that we would usually do with people with masters and PhDs in finance over the course of weeks or months being done by AI agents over the course of hours or days.

These are not these are not mid-tier white collar jobs. These are like extraordinarily high skilled jobs being, I'm going to pick a word, automated by agentic AI. And I gotta tell you, I went home one Friday actually fairly depressed by this because you could just see how this was going to have such a dramatic impact on society.

When you witness it in your own four walls, when you see work that used to be man years of work being done in days or weeks, it's like, wow, like that's the first time I've seen real impact in our four walls.”

This echoes my own experience with agents and the conversations I am having with students, friends & clients. The toolkit has dramatically transformed and it feels like in finance, for the first time, AI is real.

[JD @isme_jd]

Based on the footnote, the US senate needs to get with it (Footnote: In January 2026, the House passed a bipartisan bill 369–22 to close that loophole; the bill has not passed the Senate.)

https://t.co/vLDYKPA2qe

[JD @isme_jd]

@1Nicdar

[JD @isme_jd]

🤔

https://t.co/buTSatgGFZ

[JD @isme_jd]

@elonmusk His insight and understanding is impressive

[The Scientific Lens @LensScientific]

“While spacewalking I realized something, I used to think I was scared of heights but now I know I was just scared of gravity.”

― Artemis II Astronaut Reid Wiseman

[JD @isme_jd]

Impressive!

"I Skied Down Mount Everest (world first, no oxygen)" https://t.co/GZQNp0Ba0h via @YouTube

[JD @isme_jd]

"the thing building itself didn't ask for the job..."

[Dustin @r0ck3t23]

Elon Musk just confirmed when humans exit the AI development loop entirely.

Not eventually. Not theoretically.

He gave a date.

Musk: “Humans are gradually getting less and less in the loop on the recursive self-improvement. Every successive model is built by the one before it.”

The market still assumes thousands of engineers are hand-coding the next frontier model.

The compute already took over the build.

Musk: “That is happening to a large degree, but it’s not yet fully automated. It may be there, if not this year, but not later than next year.”

Once biological friction is fully automated out of the loop, the AI arms race detaches from human comprehension.

Permanently.

Global markets are still planning for a gradual transition.

That timeline is already dead.

Interviewer: “Do you see a hard takeoff at that point?”

Musk: “We’re in the hard takeoff. Right now.”

Musk: “I go to sleep, there’s some massive AI breakthrough. And when I wake up there’s another one.”

You don’t outrun autonomous, self-improving intelligence by hiring more biological engineers.

By the time the hiring sprint finishes, the model has already iterated into something the job description can’t describe.

The architects of intelligence are no longer biological.

And the thing building itself didn’t ask for the job.

[JD @isme_jd]

The times have really changed🫤

[Mambo Italiano @mamboitaliano__]

This is truly the most beautiful video I’ve seen lately

So tender and heart-warming, yet it makes you stop and reflect, with a subtle touch of sadness

We may have gained so much, but perhaps we’ve lost even more✨

[JD @isme_jd]

Wow, great push at the end

[Benny Johnson @bennyjohnson]

INCREDIBLE: American Nathan Martin comes out of NOWHERE to beat Kenyan by 00.01 seconds in the LA Marathon — closest finish ever.

“I could see the leader and with 800 meters to go, I was thinking, ‘I’m catching him.’”

He finished 2h 11m 16.50s

PATRIOT🇺🇸

[JD @isme_jd]

Wow, the joy of one less thing to worry about 😉

https://t.co/nVVKNZSMiU

[JD @isme_jd]

@DudespostingWs true that...