Kevin von Keyserling

Husband, Father of 2 boys, co-founder of Keyfactor, CEO of ReadySet Surgical, love great tech innovation, sports, and fan of humanity

[Lex Fridman @lexfridman]

I got to spend all day today with Jensen in Taiwan: talking with thousands of engineers and eating street food at a night market. Jensen is received as a rockstar in Taiwan, like it's Beatles in the 60's. It's mind-blowing and fun to watch. But most importantly, through all the interactions and all my conversations with him, he remained the same humble, kind, thoughtful, funny guy he always was, even as a kid who went to these same night markets many years ago.

Btw, we tried a crazy amount of different street food. It's legit some of the most delicious food I've ever had. I can't wait to share video of it, including a ton of our conversations and hangout. When I can pause for a moment from all the travel to edit the video, I'll post it.

Can't wait to continue talking to Jensen and engineers at Computex this week, and exploring more of Taiwan, and of course roaming the night markets for some more delicious street food.

Days like these, even more than usual, I feel like the luckiest kid in the world.

Love you all! ❤️

[Lex Fridman @lexfridman]

Here's my conversation with Don Lincoln about some of the biggest open questions in physics, including dark energy, dark matter, the matter-antimatter imbalance, quantum vacuum, quantum foam, and the quest to unify the laws of physics.

Don is a particle physicist at Fermilab who has spent decades working at the frontiers of high energy physics. He is also a great teacher & writer. I highly recommend his courses & books. One of my favorite lecture series he has given is The Evidence for Modern Physics where he breaks down the experiments that validate some of the weird laws of physics we have, and what it would take to validate even the weirder ones.

It's not enough to come up with a beautiful theory. You also have to show through experiment that the theory is likely to be correct. This process often doesn't get the love it deserves, even though it's often the most important and difficult part of the scientific process.

I ❤️ physics.

The conversation is here on X in full and is up everywhere else (see comment).

Timestamps:
0:00 - Introduction
0:49 - Unifying the laws of nature
15:20 - General relativity
32:27 - Electroweak force
44:09 - How particle colliders work
1:02:12 - Higgs boson discovery
1:12:32 - Theory of everything
1:42:17 - Physics of empty space
1:49:41 - Antimatter
2:10:31 - Dark energy
2:14:20 - Dark matter
2:42:56 - Future of physics

[Volodymyr Zelenskyy / Володимир Зеленський @ZelenskyyUa]

Tonight, the Russians struck Kyiv and other Ukrainian cities and communities. The largest number of missiles was directed at the capital – at ordinary residential buildings, at schools; they burned down a food market, one of Kyiv’s oldest markets. The Russian strike effectively destroyed the Chornobyl Museum, damaged the National Art Museum and the building housing the office of Germany’s ARD. As of now, 69 people have been reported injured in the capital. Tragically, two people were killed in this senseless Russian attack. My condolences to everyone who has lost family members and loved ones.

I have already spoken with the President of France and the Prime Minister of Norway. There will be further communication with our partners today. I am grateful to everyone who is not staying silent about what Russia is doing. They are waging war solely against our people – against our memory, our history, and everything that makes up normal human life. It is important that Russia understands that they will be held accountable for all these crimes.

[clevelanddotcom @clevelanddotcom]

United Airlines is adding nonstop flights to Las Vegas and Miami, expanding its presence at Hopkins and giving locals easier access to two of the most in-demand destinations. https://t.co/Ev25BN3vIp

[Aaron @aaronp613]

Coming in visionOS 27:

A new power wheelchair control feature leverages the precision eye-tracking system on Apple Vision Pro to offer a responsive input method for compatible alternative drive systems.

[Rand Paul @RandPaul]

Washington doesn't have a revenue problem. It has a spending problem. My Six Penny Plan fixes it: cut 6 cents from every dollar spent for 5 years. Families balance their budgets. Washington should, too.

[National Geographic @NatGeo]

The astronauts have returned home 🌎 The Orion crew capsule has splashed down off the coast of San Diego after traveling around the moon for 10 days. Here's what's next: https://t.co/VOkuTl1rH5

[NASA @NASA]

Let's run that back. One more time... Or two?
Our crew is now safely back on Earth. Relive the historic mission, and keep an eye on our website as more images and videos keep rolling in. https://t.co/FoYXKVvve5

[NASA @NASA]

Coming up next, our @NASAArtemis astronauts and @NASAAdmin answer questions from social media. Stay tuned: https://t.co/do2p0Gvxdu

[NASA @NASA]

🌞🌕🧑‍🚀

Right now, the Orion capsule is passing behind the Moon, so the Sun is entirely eclipsed from their perspective. During this time, they will view a mostly darkened Moon and will use the opportunity to analyze the solar corona.

[NASA @NASA]

"Welcome to my old neighborhood." Our @NASAArtemis II astronauts woke up on the sixth day of their mission to a special message recorded in 2025 by astronaut Jim Lovell, the pilot of Apollo 8.

[Elon Musk @elonmusk]

NASA Artemis passing close to the Moon

[NASA @NASA]

History in the making

In this new image from our @NASAArtemis II crew, you can see Orientale basin on the right edge of the lunar disk. This mission marks the first time the entire basin has been seen with human eyes.

[National Geographic @NatGeo]

Apollo 8 astronauts captured the iconic Earthrise image, which inspired the global environmental movement. Artemis II astronauts may have the chance to recreate it more than 50 years later. Here's how they might do it: https://t.co/wSlhdwzgAE

[NASA @NASA]

We see our home planet as a whole, lit up in spectacular blues and browns. A green aurora even lights up the atmosphere. That's us, together, watching as our astronauts make their journey to the Moon.

[NASA @NASA]

Good morning, world! 🌎

We have spectacular new high-resolution images of our home planet, all of us looking back through the Orion capsule window at our Artemis II astronauts as they continue their journey to the Moon.

[NASA @NASA]

It’s not a straight shot to the far side of the Moon! 🌕

Over approximately 10 days, the Artemis II astronauts will orbit Earth twice before looping around the far side of the Moon in a figure eight and returning home.

[National Geographic @NatGeo]

Humanity is one small step closer to returning to the moon. At 6:35 pm EDT, the Artemis II mission blasted off from NASA’s Kennedy Space Center, sending four astronauts around the moon and back, testing crucial technologies that will pave the way for future moon landings. 🔗 https://t.co/gtMMtvVUak

[NASA's Johnson Space Center @NASAJohnson]

Every leap begins with a liftoff. 🚀