Dariush Azimi

artificial intelligence, builder

[Jota @jota_snchez]

Bill Ackman, uno de los mayores inversores del mundo, dio una clase de 44 minutos que explica como funciona dinero mejor que una carrera.

9 reglas para construir una fortuna:

1. Empieza cuanto antes. Tiempo > Cantidad

[Lorwen Harris Nagle, PhD @LORWEN108]

A Stanford neuroscientist warns high cortisol wrecks memory, enlarges your fear center, and make your brain feel broken.

If I wanted to fix it naturally, I'd do these 8 things every day:

1. Walk barefoot on grass for 5–7 minutes.

[You Should Know @YouShouldKnown]

🪢 7 Knots Everyone Should Know 🪢

[Rahul @sairahul1]

Anthropic pays $750,000+ a year for engineers who know how to build LLMs from scratch.

Stanford just released the exact lecture that teaches it - 1 hour 44 minutes, free, straight from CS229.

Bookmark and watch it this weekend.

It'll teach you more about how ChatGPT & Claude actually work than most people at top AI companies learn in their entire careers.

[Jota @jota_snchez]

Richard Feynman ganó el Nobel de Física y dijo algo que dejó huella:

"La mayoría de personas saben muchas cosas. Pero no saben pensar."

Feynman dio una clase magistral de 1 hora sobre física e imaginación.

Sus 12 lecciones de vida:

1. La imaginación le gana al conocimiento

[Math Files @Math_files]

Differential & Integral Calculus

[Alex Moore @heyalexmoore]

If you read books and forget everything, this is for you.

NotebookLM can turn any book into action plans, memory notes, and usable insights.

Here are 12 prompts:

[Curious Minds @CuriousMindsHub]

Write more.
Write more.
Write more.
Write more.

Because writing is thinking.

[AlgoMaster.io @algomaster_io]

14 must-know Data Structures for coding interviews:

1. Array
2. Queue
3. Deque
4. Matrix
5. Stack
6. Binary Tree
7. Linked List
8. Doubly Linked List
9. HashMap
10. Binary Search Tree (BST)
11. Heap (Priority Queue)
12. Trie
13. Graph
14. Union Find

♻️ Repost to help others in your network

[Dhanian 🗯️ @e_opore]

If I had to master API design, I’d learn these concepts:

1. What is an API

2. API Architecture Styles

3. REST Principles

4. RESTful Design

5. GraphQL

6. gRPC

7. SOAP

8. Resource Modeling

9. URI Design

10. HTTP Methods (GET, POST, PUT, PATCH, DELETE)

11. Status Codes

12. Request & Response Structure

13. JSON

14. XML

15. Serialization

16. Deserialization

17. Idempotency

18. Statelessness

19. Versioning Strategies

20. URI Versioning

21. Header Versioning

22. Content Negotiation

23. Pagination

24. Filtering

25. Sorting

26. Searching

27. Rate Limiting

28. Throttling

29. API Gateway

30. Load Balancing

31. Caching Strategies

32. Cache-Control Headers

33. ETags

34. Conditional Requests

35. Authentication

36. Authorization

37. API Keys

38. JWT

39. OAuth 2.0

40. OpenID Connect

41. CORS

42. CSRF Protection

43. Input Validation

44. Data Sanitization

45. Error Handling

46. Error Codes & Messages

47. Logging

48. Monitoring

49. Observability

50. Metrics

51. Tracing

52. Documentation

53. OpenAPI Specification

54. Swagger

55. API Contracts

56. Contract Testing

57. Mock Servers

58. API Testing

59. Postman

60. Load Testing

61. Security Best Practices

62. Encryption (HTTPS/TLS)

63. Secrets Management

64. Rate Limit Headers

65. Webhooks

66. Event-Driven APIs

67. Async APIs

68. Streaming APIs

69. WebSockets

70. Server-Sent Events

71. API Lifecycle Management

72. Deprecation Strategies

73. Backward Compatibility

74. Breaking Changes

75. API Governance

76. Naming Conventions

77. Consistency Rules

78. SDK Generation

79. Developer Experience (DX)

80. API Analytics

81. Usage Tracking

82. Monetization

83. API Marketplace

84. Multi-Tenancy

85. Scalability

86. High Availability

87. Fault Tolerance

88. Circuit Breaker

89. Retry Logic

90. Timeout Handling

91. Service Discovery

92. Microservices Integration

93. BFF (Backend for Frontend)

94. Edge APIs

95. CDN Integration

96. Data Transformation

97. Aggregation Layer

98. Orchestration vs Choreography

(...and more concepts)

===

👋 PS - Want a detailed breakdown of API design best practices?

Read right now:

→ API Design Ebook:
https://t.co/t2KOeauy6O

===

💾 Save this for later & RT to help others learn API design.

👤 Follow @e_opore + turn on notifications.

[Jaynit @jaynitx]

In 1942, the Japanese rounded up all Chinese men in Singapore.

They were filtering out the healthy young ones to execute.

Lee Kuan Yew was 18. A guard pointed at him and said: "Go to that lorry."

He knew what that meant. The lorry went to the beaches. The beaches meant machine guns.

He asked: "Can I collect my other things?"

They said yes.

He walked away, found his family's gardener, and hid in his quarters for two days.

When they changed the screening inspectors, he tried again. This time, he got through.

The ones sent to that lorry were taken to the beaches and shot. Somewhere between 50,000 and 100,000 didn't survive.

60 years later, he sat down at Harvard to explain how he built Singapore from a tiny island into one of the wealthiest nations on Earth:

On what the war did to him:

"We lived in happy, placid colonial Singapore in the 1920s and 30s. The British Empire would have lasted another thousand years, so we thought."

Then the Japanese came. In less than one and a half months, the British collapsed.

"Three and a half years of hell. Butchery. Brutality. Many didn't survive. I was fortunate. I did."

"But it changed us."

"What right did they have to do this to us? Why did the British let us down so badly?"

When the war ended, Lee went to Cambridge to study law. But he was watching with different eyes.

"Can they govern me better than I can govern myself? Because they scooted when the Japanese came in. And why shouldn't I be running the place?"

On learning languages to lead:

Lee was the best speaker in English. But only 20% of Singapore spoke English.

The masses spoke Hokkien, Mandarin, and Malay.

"So every day at lunchtime, instead of having lunch, I would sit down with a Hokkien teacher and laboriously and painfully learn to convert my Mandarin into Hokkien."

"Had I not mastered that, the battle would be lost by default."

His first speech in Hokkien, the kids laughed at him.

"I said, please don't laugh. Help me. I'm trying to get you to understanding."

By 6 months, he could get his ideas across. By 2 years, he was fluent.

"Believe it or not, at the end of two years I could speak better than most of them."

"That came respect."

It showed two things: how determined he was, and how sincere. Here was a man doing all these other things and still learning their language just to talk to them.

On fighting the Communists:

The Communists had been organizing since 1923. The year Lee was born.

"Here we were in the 1950s trying to beat them. And they are professionals at organization."

They had elimination squads. Guerrillas in the jungle. Killer squads in the towns.

Lee stood up and said no.

"They denied that they were Communists. 'We're just left-wing socialists.' So I did a series of 12 broadcasts to set the scene. And I made it in three languages."

English. Malay. Mandarin. 20 minutes each.

"When I finished each broadcast, the director of the station couldn't see me. Went into the room and found me lying on the floor trying to recover my breath."

"But it was a fight for survival. Life or death."

On where trust comes from:

"It's difficult to establish trust in times of calm. You just say, 'Well, it's an argument, therefore I'm a better guy than you.'"

"But when the chips are down and you can get eliminated in a very unpleasant way and you show that you're prepared for it and you'll fight for them, it makes a difference."

"Without that trust, we could not have built Singapore."

On IQ vs EQ:

Harvard asked him: would you prefer high IQ or high EQ in a leader?

"IQ, you can get beautiful paper done. Complex formulas worked out. Elegant solutions."

"But when you've got to get a team to work and put that formula into practice, you're dealing with human beings."

"If you're not good at EQ, you can't sense that A doesn't get on with B, and you put them in the same team. It's no good."

He rated his own EQ as 7 or 8 out of 10. His IQ as "maybe 120."

But he had colleagues who could sense a person instantly.

"He shook hands with the man and said, 'I recoiled when I felt his palm. Evil man.' And he was. How does he know? I don't know."

"So I learned whenever I had to do interviews to choose people, I would get people who are very good at seeing through a candidate."

On corruption:

Singapore in the 1950s was full of deals, bribes, and organized crime.

"When we took over, we decided that this was the critical factor. If we did not make it so that every dollar put in at the top reaches the ground as one dollar, we're not going to succeed."

"We came in and made a symbolic act. We dressed in white shirts, white trousers, and said we will be what we represent."

He put the anti-corruption bureau under his personal portfolio.

"I gave the director the authority to investigate everybody and everything. All ministers. Including myself."

One of his own colleagues took half a million in bribes. When the investigation started, he asked to see Lee.

"I said, if I see you then I'll be a witness in court. So best not see me. Better see your lawyer."

The man committed suicide. Left a note saying: "As an oriental gentleman who believes in honor, I have to pay the supreme price."

"It's a heavy price. But it reminds every minister that there are no exceptions."

On consistency:

Lee had three journalists analyze 40 years of his speeches.

He asked them: what was the dominant theme?

All three said the same thing: consistency.

"What I said at the beginning, throughout all that period, the theme stayed loud and clear."

"That made it simple. Because you know where you stand with me. And you know what I want to do."

On delivering results:

"We deliver the homes, the schools, the jobs, the hospitals."

"Today, 98% of our people own their own homes. The smallest would be about $100,000 US. The biggest about $300,000."

"Once you own that amount of assets, you are not in favor of risking it with a crazy government. Your assets will go down in value."

"But that was planned."

Why? Because Singapore is small. Everyone does national service. If you're going to fight, you better be fighting for something you own.

"So we give everybody a stake."

On changing culture slowly:

Lee wanted Singapore to speak English. But he couldn't force it.

"Had I passed a law and said you will all learn English, we would have had mayhem. Riots."

Instead, he let parents watch who got the best jobs. The jobs were already there, from the multinationals and banks. They all used English.

"They watched and saw who got the best jobs. And they switched."

It took 16 years.

"I did not want to have said 16 years. Because in those 16 years I lost 20,000 Chinese graduates who had poor jobs. I wanted to make it shorter. I couldn't. I would have run into flack."

On whether leadership can be taught:

Lee quoted Isaac Singer, the Nobel Prize winner for Yiddish literature.

Someone asked Singer: "Can you make a writer write great literature?"

He paused. Then said: "If he has the writer in him, I will make him a good writer in a shorter time."

Lee's version:

"Can you make a leader of anybody? I don't think so."

"He must have some of the ingredients. He must have that high energy level. He must have the ability to project himself, his ideas. He must have the desire, almost instinctively, to say 'let's do something better.' Of wanting to do something for his fellow men and not just for himself and his family."

"You can't teach those things. He's either got it or he hasn't got it."

"But if he's got that, then you can save him a lot of trouble."

On sustaining yourself:

Harvard asked how he managed despair over decades of leadership.

"If your message is one of despair, then you should not be a leader. You must give people hope."

"But there are moments when you feel very down. Either because you're physically down, or emotionally down, or because the world has turned adverse against you."

"When you are in that condition, the first thing you do is get a good night's sleep. Then get a swim or chase a ball. Get the cobwebs out of your mind."

"If you're not fit, you're going to make mistakes. Physically fit. You must stay physically and mentally fit."

In his later years, he learned to meditate.

"At the end of 20 minutes to half an hour, my pulse rate can go down from 100 to about 60. You can feel yourself subside. You still your mind. You empty your mind."

"Then when you are rested, you resume quietly. You still got the same problems. Maybe you sleep on it. Come back. Look at it for a few days. Then decide."

This 2 hour Harvard interview will teach you more about leadership than every business book you've read combined.

Bookmark & give it 2 hours this weekend, no matter what.

[Neo Kim @systemdesignone]

If you're serious about system design (in 2026), learn these 26 case studies:

1 How Stock Exchange Works:
↳ https://t.co/iFNSX9TM9O

2 How YouTube Works:
↳ https://t.co/kHk3g6jz6t

3 How Kafka Works:
↳ https://t.co/8rOy9KgCMo

4 How Google Docs Works:
↳ https://t.co/W57IkAjXpT

5 How URL Shortener Works:
↳ https://t.co/tGndgdhH0V

6 How WhatsApp Works:
↳ https://t.co/VScq8QwHMr

7 How Airbnb Works:
↳ https://t.co/Bi5SAjfv5S

8 How Spotify Works:
↳ https://t.co/BxrH3oHIFS

9 How Slack Works:
↳ https://t.co/eIo29uOQOJ

10 How Reddit Works:
↳ https://t.co/o6Pw2hhj3T

11 How Bluesky Works:
↳ https://t.co/2rLYlRlky0

12 How Tinder Works:
↳ https://t.co/4E1zfgfvlw

13 How Twitter Timeline Works:
↳ https://t.co/pF2RYmPaIG

14 How Uber Finds Nearby Drivers:
↳ https://t.co/kJ2t8dtmch

15 How Pastebin Works:
↳ https://t.co/8NSUNlYM7q

16 How Amazon S3 Works:
↳ https://t.co/iReWAEHwmj

17 How Do Apple AirTags Work:
↳ https://t.co/upWcgsXwKh

18 How LLMs Actually Work:
↳ https://t.co/5lCKxq2g4N

19 How Uber Computes ETA:
↳ https://t.co/hw1hYJqQmj

20 How Real Time Leaderboard Works:
↳ https://t.co/HEChNTOHWb

21 How ChatGPT Apps Work:
↳ https://t.co/BJTYYnAwO1

22 How Nginx Works:
↳ https://t.co/JTeQTJvyrf

23 How ChatGPT Works:
↳ https://t.co/TZYZ3iddYH

24 How Meta Serverless Works:
↳ https://t.co/NSt6jovxu5

25 How YouTube Was Able to Support 2.49 Billion Users With MySQL:
↳ https://t.co/4VDJ5cs6fL

26 How Google Search Works:
↳ https://t.co/jwOaC4bhnv

What else should make this list?

===

👋 PS - Want my System Design Playbook for FREE?

Join my newsletter with 200K+ software engineers now:
→ https://t.co/ByOFTtOihX

===

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[Math Files @Math_files]

Richard Feynman used this book to master calculus when he was 15.

[Alan Garfinkel @alan_garfinkel]

Thrilled to announce the publication of our non-conventional stats text, which takes a pure computer-intensive simulation and resampling approach to statistical tests, confidence intervals, power analyses, plus an intro to Bayesian methods at the end.
https://t.co/INR8cwWJze

[Just a Dude Who Invests @DudeWhoInvests]

Peter Thiel gave a 40 minute lecture on everything about business competition. This teaches you more than any bachelor’s in business could…

Do yourself a favor and watch this.

[Alif Hossain @alifcoder]

MIT 700-page book that actually teaches machines how to think.

-/algorithmsbook.com/files/dm.pdf

[Alex Xu @alexxubyte]

How GPUs Work at a High Level

[Piotr Pomorski @PtrPomorski]

Reminder:
- MSE you use when you don’t have outliers
- RMSE you use when you want to interpret the above better
- MAE you use when you have positive/zero/negative values and outliers
- MAPE you use when you only have positive values and emphasize interpretability
- RMSLE you use for positive values with nonnormal distribution
- wMAPE you use when you want MAPE but have large vs small values
- sMAPE you use when you want MAPE but have zero/negative values
- R2 you use because your boss only knows this one

[Curious Minds @CuriousMindsHub]

8 Greatest Laws I know at 35, I wish I knew at 20:

1. Dunning-Kruger Effect

[The Shift Journal @TheShiftJournal]

This advice will change your life.