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Story time: The Sun.

28,928 просмотров • 1 год назад •via X (Twitter)

Комментарии: 11

Фото профиля Amichai Mantinband
Amichai Mantinband1 год назад

Never knew how much I needed a daily dose of uncle bob

Фото профиля Solar Heavy
Solar Heavy1 год назад

new single Stargazing just landed

Фото профиля Dan Wiebe
Dan Wiebe1 год назад

This reminds me of a graduate study I read about years ago that analyzed the cost of brute-forcing a 256-bit key in terms of power rather than time, based on the Landauer limit that states a theoretical minimum power required for flipping a binary bit. The guy postulated a very simple prototype that merely flipped a single bit back and forth between one and zero, 2^256 times. Put it out beyond the heliopause somewhere to get it really close to absolute zero, so the Landauer limit is as small as possible. Such a "computer" obviously can't do any codebreaking, but at least it'll serve to put a lower limit on the power required. The guy figured out that if you could capture all the power from an average supernova and feed it into the bit flipper at a rate it could handle, it would be enough to power about 2^192 bit-flips. This means you could power it through the entire sequence just by capturing all the energy from a mere 2^64 (~10 sextillion) supernovas. And of course, once we're done with that, we can start building a computer that can actually try real encryption keys. Bada bing, bada boom, pretty soon we'll be able to break into anybody's Ethereum wallet, as long as we can accumulate enough supernovas.

Фото профиля gohashira
gohashira1 год назад

delighted every day when this drops.

Фото профиля Chris Malloy
Chris Malloy1 год назад

To play it safe I will plan my move to mars in 200 million years or so

Фото профиля Rob
Rob1 год назад

There's an additional interesting detail: the Earth has a lot of land mass in the Northern hemisphere and a lot of water in the Southern hemisphere. If the Earth didn't have a tilt of 23.4 degrees then we would have had terrible a temperature asymmetry. We are saved by the tilt.

Фото профиля giatt
giatt1 год назад

well. heh…

Фото профиля Juan Domingo Milei
Juan Domingo Milei1 год назад

Or we move the sun

Фото профиля Dev with No Name🌐⚙️👨‍💻🏴‍☠️🇧🇷
Dev with No Name🌐⚙️👨‍💻🏴‍☠️🇧🇷1 год назад

Maybe if we develop some kind of technology that controls the space distortion (since space is describe like a fabric but is more like a fluid) it would be more simple than move the earth, maybe refueling the sun is another alternative (I know people would say that amount of fuel need is immense, there's all other sort of problems that needs to be solved, but we have plenty of time for that).

Фото профиля Akul Patel
Akul Patel1 год назад

Always learning something valuable from you, Uncle Bob @unclebobmartin . Thanks for sharing.

Фото профиля Free Speech Prevents Tyranny 🇺🇲
Free Speech Prevents Tyranny 🇺🇲1 год назад

Really enjoyed this Bob, well done 👍

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