Elon Musk says that if you run a computer in space 20% hotter, you can cut its radiator in half.
That sounds like a rounding trick. It's physics.
In the video below, Musk explains how he would design AI computers for space: "I'd just design it to run hot."
On Earth, you cool a chip with air or water. In space there's no air. The only way to get rid of heat is to radiate it away as light.
How much heat a radiator gives off follows the Stefan–Boltzmann law. It grows with the fourth power of temperature in Kelvin.
So raise the temperature by 20%, and the heat each square meter radiates goes up by 1.2 × 1.2 × 1.2 × 1.2 = 2.07.
Twice the heat per square meter means you need half the radiator for the same chip. "You can cut your radiator mass in half."
Take a radiator at 300 K, about 27°C. Raise it to 360 K, about 87°C. That's the 20%.
Every kilogram you launch costs money, and radiators for big computers are heavy. Halving them is a big deal.
Then there's radiation. In space, cosmic rays randomly flip bits in memory, turning a 0 into a 1.
Musk says that matters less for AI. "If you've got a multi-trillion parameter model and you get a few bit flips, it doesn't matter."
A normal program can crash from one wrong bit. A neural network spreads what it knows over trillions of numbers, so a few wrong ones barely change the answer.
The case against: chips that run hotter wear out faster, and 87°C is close to the point where today's GPUs start slowing themselves down. In orbit, nobody can come and swap a dead one.
So is the fourth power of temperature enough to make data centers in space worth it, or does the chip give out before the math pays off?
In August 1962, Pete Best was the Beatles' drummer. Then their manager, Brian Epstein, called him into his office.
"In a nutshell, the boys want you out and they want Ringo Starr in."
In the video below, Best tells David Letterman how it happened and what came after.
There was no warning. Best says Epstein paced the room and bit his nails for three or four minutes before he said it.
Best had played with the band for two years, including the long nights in Hamburg. Ringo was a good friend of his.
Within weeks, "Love Me Do" was out. Soon the Beatles were the biggest band in the world.
Best joined another Liverpool group, Lee Curtis and the All Stars. Twice they opened for the Beatles, once at the Cavern and once at the Majestic Ballroom. As Best walked off stage, his old bandmates walked on.
Nobody said a word to him. "Just stony silence."
"They caused me a lot of hardship. Grief, you know, financial embarrassment," he told Letterman.
The case for the band: producer George Martin wasn't happy with Best's drumming at their first EMI session, and John, Paul and George wanted a drummer who fit the group.
In 1995, Anthology 1 came out with recordings that had Best on drums. He reportedly made millions from it.
So was dropping Best just a business call, or did the Beatles owe their friend more than a message from their manager?
In 2019, Tobey Maguire won $15.6 million playing poker against billionaire Andy Beal. Beal delayed payment and asked for a discount. Maguire spent $500,000 on a lawyer and collected his full $7.8 million share.
In the video below, private poker organizer Molly Bloom describes what the Spider-Man actor was like at her table. She recalls him saying: “It’s not really about money. It’s more about crushing souls.”
Bloom remembers Maguire assuring an opponent during one hand: "Listen, I have the top hand. I swear on my mother's life". The man agonized, eventually folded, and Maguire revealed the bluff.
According to Bloom, he made a different demand of her: to receive a tip, she had to climb onto the table and bark like a seal.
Bloom refused. She says the standoff lasted 35 minutes: the game stopped while everyone at the table watched.
A few weeks later, Bloom says, Maguire arranged for one of the wealthy players to host the games at his house. The other players followed, leaving her without the game she had been running.
Then Maguire called her: “You’re done. You’re over.”
Lawyer Tom Goldstein helped Maguire collect the money from Beal. In January 2026, the actor described the arrangement in court, where Goldstein himself was facing tax charges.
Beal had lost money to Maguire and owed him payment. Bloom refused to be humiliated and lost the game she organized.
Was winning the money enough for Maguire, or did he need the people at the table to feel defeated?
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Warren Buffett paid $3.25 a share for Coca-Cola. Today that same share pays him $2.12 a year. Not the stock price. The dividend.
1988. He started buying. Spent $1.3 billion total. 400 million shares after stock splits. He has never sold one.
In 2025, those 400 million shares paid Berkshire Hathaway $816 million in dividends. $93,150 every hour. $25 every second. For doing nothing.
That is a 65% annual return on what he paid. Not on what the stock is worth today. On what he paid 37 years ago.
He held through the crash of 1990. Through the dot-com bust in 2000. Through the financial crisis in 2008. Through COVID in 2020. The stock dropped every time. The dividend arrived every quarter.
Coca-Cola has raised its dividend for 64 consecutive years. So next year, it goes up again.
People watch the stock price because it moves every second. The thing that actually compounded moves once a year.
He paid $3.25 a share. The dividend is $2.12. It hasn't stopped growing in 64 years.