Dave 🚢

Here's a Quick Tutorial On Creating Your Own Custom GPTs This feature is currently for plus accounts only. I compare parts of the GPT Builder to familiar Prompt Engineering concepts.

@ajaypal_singh That sounds like a great challenge. It’ll be interesting to read about your progress and training plan

@ajaypal_singh Thanks Ajay. I did go a bit Douglas Adams, but it seemed easier to grasp this than thinking about semiconductors at nano-scales

@neohed Great thread... I like the various dimensions and numbers you use to draw the contrast and show the sheer scale of how computing has evolved!!

Ever wondered how far computing has come in 80 years? You can stare at numbers all day— but to really grasp it, let’s compare the world’s largest AI cluster (xAI’s Colossus) to ENIAC, the very first programmable computer, finished in 1945

That’s the power of Moore’s Law—and miniaturization: From room-sized, hundred-FLOP relics to RTX cards delivering 80+ TFLOPS—sitting under your desk

Cooling? This monster could boil the Pacific Ocean in hours Or 6 billion Niagara Falls of water vaporized every second Hope you like steam and a billion tonnes of fish stew

I/O? ENIAC used punched cards Now scale that up: Your punched card stack is taller than the observable universe You’ll need more keypunch operators than atoms in… well, almost anything

Staffing? ENIAC needed ~10 operators Now: 2.47 × 10¹⁸ humans That’s over 20 million times every human who’s ever walked the Earth

PSU? ENIAC used 150 kW 247 quadrillion ENIACs = ~3.71 × 10²² W That’s over a billion times Earth’s current electricity use To power it, you'd need: – trillions of nuclear plants, or – a brown dwarf star (The Sun? Overkill)

Weight? 1 ENIAC = 27 tonnes Total = 6.68 × 10¹⁸ tonnes More than a million Everests

Math time Colossus ÷ ENIAC = ~2.47 × 10¹⁷ That’s 247 QUADRILLION ENIACs—or about 31 million per person on Earth today

xAI’s Colossus: A mega-cluster of 100,000 NVIDIA H100s, cranking out ~98.9 exaFLOPS (that’s 9.89 × 10¹⁹ FLOPS) It’s training Grok and rewriting the future So how many ENIACs equal Colossus?

ENIAC, 1945: the first programmable electronic computer Processing power? ~400 FLOPS It weighed 27 tonnes, guzzled 150 kW, and housed 17,000 vacuum tubes

Has AI Killed the Rubber Duck?

@ajaypal_singh Sounds like you've got it all covered - physical, cognitive and professional/tech. I see similar benefits using ChatGPT for software specifications.

So what’s your play? 🏗️ Build hobby projects and have fun? 🧠 Or level up and treat AI like a teammate—not a vending machine? That’s how vibe coders level up—and start building like professional developers.

Vibe coding isn’t a shortcut that replaces developers. It’s the fastest, most fun on-ramp to becoming one. If you’re willing to learn—testing, refactoring, debugging—it can transform you.

🎯 Vibe coding feels like god mode. Type what you want in plain English—AI writes the code. Then, at 70% done… the wheels fall off the wagon. Let’s talk about the trap and the opportunity 👇