David Titcombe

[Shweta singh @Tech_by_Shweta]

After 2 years using Claude, I can say it’s the technology that has revolutionized my life.

Here are 20 prompts I use daily that have transformed my day to day; they could do the same for you:

(Save this 🔖)

[𝐌𝐚𝐥𝐜𝐨𝐥𝐦 @Malcolm_Pal9]

Spanish player pushed Trump aside after he tried to be on stage during the World Cup trophy presentation. 🇪🇸💪

[CALL TO ACTIVISM @CalltoActivism]

🚨WORLD WIDE HUMILIATION:

Trump hands the World Cup trophy to Spain, then refuses to get off stage, despite Gianni Infantino trying to direct him off of it.

This might be the most embarrassing thing I have ever seen.

[Mumbai Heritage @mumbaiheritage]

Pure magic.
Pause the video at the 2-second mark. At the exact moment Messi releases the pass, seven England players and the goalkeeper, all over 1.85m tall, are in line. Yet the ball arrives perfectly at the feet of the 1.74m Martínez, leaving him with the goal at his mercy. That’s vision only Messi possesses.
#FIFAWorldCup #Argentina

[Daniel Abrahams @DanAbrahams77]

@elNicodenuevo Utterly fantastic photo 👍🏻

[Nature Unedited @NatureUnedited]

A security camera captured two Belgian Malinois puppies playing while their owner wasn't home

[NO CONTEXT HUMANS @HumansNoContext]

That is hilarious

[David Titcombe @davidtitcombe]

@foomper @voided ⅔is

[Michael A. Arouet @MichaelAArouet]

Each time I travel to Italy, I wonder about the massive economic gap.

Why is the North one of the wealthiest areas in Europe, while the South remains so extremely poor?

Isn’t it the same country, with the same language, culture, taxes, and laws? Can someone please explain?

[CyrilXBT @cyrilXBT]

A MIT professor gave a 1-hour lecture in 2019 that has 18 million views.

He died 5 months after recording it.

It was his final gift to the world.

Patrick Winston taught at MIT for 50 years.

The smartest engineers on earth sat in his classroom.

And he spent his last lecture teaching them the one skill their degrees never covered.

How to speak.

15 lessons that will change how you communicate forever:

Never open with a joke. Your audience is not ready to laugh yet. Open with a promise of what they will know by the end.

Your ideas are like your children. You are too close to them. What is obvious to you is invisible to everyone else. Explain the obvious.

The 5-minute rule: the first 5 minutes of any talk determine whether people will listen for the next 55. Spend more time on your opening than anything else.

Repeat your most important idea 3 times in 3 different ways. Once is never enough.

Build a fence around your idea. Tell people what it is NOT before you tell them what it IS.

Verbal punctuation. Pause. Let the idea land before moving to the next one.

Ask questions nobody will answer. Then wait 7 seconds. The silence is not awkward. It is processing.

Never read your slides. Your audience can read. They cannot listen and read simultaneously.

Use the board not the slides. Writing forces you to slow down. Slowing down forces clarity.

Inspire before you inform. Nobody learns from someone they are not inspired by.

End with a contribution not a summary. Tell them what you gave them. Not what you said.

Never say thank you at the end. It is weak. End with something that lands.

Stories make ideas stick. Data makes ideas understood. You need both. In that order.

The quality of your communication determines the quality of your ideas in the eyes of the world. Not the ideas themselves.

Practice is not preparation. Practice IS the skill.

Patrick Winston understood something most people spend their entire careers missing.

Your ideas are only as powerful as your ability to transfer them into someone else's mind.

You can be the smartest person in the room and be completely invisible.

Or you can master communication and make average ideas feel like breakthroughs.

He chose to spend his last lecture teaching this.

Watch it tonight.

Bookmark this first.

Follow @cyrilXBT for more lessons from the people who built the future.

[Aakash Gupta @aakashgupta]

Your brain has a circuit that doesn't know you live in a city. Its only job is to monitor whether birds are still singing. Right now, in this room, it is on.

The circuit predates primates. Mammals have been using ambient soundscape continuity as a predator-detection system for roughly 200 million years. Birds stop singing when something larger moves through their territory. For most of mammalian history, a forest full of song meant no large predator was nearby, and the cessation of sound was the warning. Your nervous system never updated this software.

The Max Planck Institute tested the inverse in 2022 with 295 participants. Six minutes of birdsong dropped anxiety with a medium effect size. Six minutes of traffic noise raised depression with the same. The effect worked on subjects who lived in dense urban environments and had no regular contact with nature. The brain still ran the check.

Birdsong sits in the 1,000 to 8,000 Hz range. Your brainstem reads continuous patterns in that band as a signal that nothing dangerous is currently moving through the environment. EEG data shows birdsong at 45 to 50 decibels boosts alpha wave activity by 14.1% relative to silence. Alpha is the brainwave signature of relaxed alertness. Push the same birdsong above 60 decibels and the response flips. Stress markers rise 29%. The circuit only trusts the signal at the volume of quiet conversation, which is exactly the volume birds sing at from a typical distance.

Three things happen simultaneously when the brain registers ambient safety. The amygdala downregulates. The parasympathetic nervous system takes over from the sympathetic. Heart rate variability rises, cortisol drops. The posterior cingulate cortex, which sits at the center of the rumination circuit, quiets down. King's College London tracked this through a smartphone study with over 1,200 participants and found the mood lift lasted hours after the sound stopped. People diagnosed with depression got the same response as healthy controls.

Most of what gets labeled mental fatigue is hypervigilance running in the background. Birdsong tells the circuit it can stand down, and the brain reallocates the freed compute everywhere else.

A quiet park feels different from a quiet office because the parks have sentinels.

[Ihtesham Ali @ihteshamali]

An MIT professor taught the same math course for 62 years, and the day he retired, students from every country on earth showed up online to watch him give his final lecture.

I opened the playlist at 2am and ended up watching three of them back to back.

His name is Gilbert Strang. The course is MIT 18.06 Linear Algebra.

Every machine learning engineer, every data scientist, every quant, every self-taught programmer who actually understands how AI works learned the math from this one man. Most of them never set foot on MIT's campus. They just opened a free playlist on YouTube and let him teach.

Here's the story almost nobody tells you.

Strang joined the MIT math faculty in 1962. He retired in 2023. That is 61 years of standing at the same chalkboard teaching the same subject to 18-year-olds.

The interesting part is what he did when MIT launched OpenCourseWare in 2002. Most professors were skeptical. They worried that putting their lectures online would make their classrooms irrelevant. Strang did not hesitate. He said his life's mission was to open mathematics to students everywhere. He filmed every lecture and gave it away.

The decision quietly changed how the world learns math.

For decades linear algebra was taught the wrong way. Professors started with abstract vector spaces and proofs about field axioms. Students drowned in the abstraction. Most never recovered. They walked out believing they were bad at math when they had simply been taught in an order that nobody's brain is built to absorb.

Strang inverted the entire curriculum.

He started with matrix multiplication. Something you can write down on paper. Something you can compute by hand. Something you can see. Then he showed his students that everything else in linear algebra eigenvectors, singular value decomposition, orthogonality, the four fundamental subspaces was just a different lens for understanding what the matrix was actually doing under the hood.

His rule was strict. If a student could not explain a concept using a concrete 3 by 3 example, that student did not actually understand the concept yet. The abstraction was supposed to come last, not first. The intuition was the foundation. The proofs were just confirmation that the intuition was correct.

The second thing Strang changed was the classroom itself. He said please and thank you to his students. Every single lecture. He paused mid-derivation to ask "am I OK?" to check if anyone was lost. He never used the word "obviously" or "trivially" because he knew exactly what those words do to a student who is one step behind. He treated 19-year-olds learning math for the first time the way he treated his own colleagues. With patience. With respect. With the assumption that they belonged in the room.

For 62 years.

The result is something that has never happened in the history of education. A single math professor became the default teacher of his subject for the entire planet.

Universities in India, China, Brazil, Nigeria, every country with a computer science department, started telling their own students to just watch Strang's lectures. The University of Illinois revised its linear algebra course to do almost no in-person lecturing. The reason was honest. The professor said they could not compete with the videos.

His final lecture was in May 2023.

The auditorium was packed with students who had never met him before. He walked to the chalkboard, taught for an hour, and at the end the entire room stood and applauded. He looked confused for a moment, like he genuinely did not understand why they were cheering. Then he smiled and waved them off and walked out.

His written comment under the YouTube video of that final lecture was four sentences long. He said teaching had been a wonderful life. He said he was grateful to everyone who saw the importance of linear algebra. He said the movement of teaching it well would continue because it was right.

That was it. No book promotion. No farewell speech. No legacy management.

The man whose teaching is the foundation of modern AI just thanked the audience and went home.

20 million views. Zero ego. The entire engine of the AI revolution sits on top of math that millions of people learned for free from one quiet professor in Cambridge.

The course is still on MIT OpenCourseWare. Every lecture, every problem set, every exam, every solution. Free.

The most important math course of the 21st century is sitting one click away from you. Most people will never open it.

[Historic Vids @historyinmemes]

Madrid police released footage of their police dogs training to do
CPR

[vast.ai @vast_ai]

H100 SXM from $1.67/hr. 80GB HBM3, NVLink. Half the cost of reserved.

[The New Yorker @NewYorker]

By his own account, Alex Spiro has won every case he’s brought to trial in a decade of private practice. “I have a photographic memory, basically—that’s my special secret sauce,” Spiro said. https://t.co/ijxkbOQtYJ

[Matt McDonagh @McDonaghMatthew]

@mcuban Technology's past indicates tokens will go down in cost, up in cost performance.

I don't get his point.

Can you explain what you find compelling about it?

[VINCENT OSHANA @VincentOshana]

The connections in this one interview.

Virginia Giuffre reveals Epstein trafficked her to Andrew.

She’s hit by a bus then “commits suicide.”

The interviewer’s mother gets kidnapped and is still being held for ransom.

And today, Andrew was arrested.

[julie k. brown @jkbjournalist]

Prince Andrew's Arrest
Never in a million years did I fathom this when I resurrected the Epstein story in 2018.
https://t.co/YxkfChUCV7