davidhop

Living life to the full and a bit of a Geek, Basketball fan and sporty type!

[davidhop @davidhop]

@FishAudio Fish

[davidhop @davidhop]

@rom1trs Motion

[davidhop @davidhop]

Most enterprise AI dies at POC.

🚀 POC: tiny bill.
📈 Production: cloud bill explodes.
🏭 AI factory: own the racks.

Break-even ≈ 500M tokens/mo. Above that, owned wins 8-18x cost/token.

The flywheel starts AFTER the crossover.

→ https://t.co/rRUFt5x7ft

[davidhop @davidhop]

Is your AI agent actually working?

🧪 Golden set (regression)
⚖️ LLM-as-judge (quality)
📊 Real-user signals (revealed truth)

The trap: tests pass, prod doesn't. Eval drift.

Pick ONE metric mapping to revenue.

→ https://t.co/BDcwwAO0I4

[davidhop @davidhop]

An AI agent has three layers, not one:

🧭 USER INTENT
🛠️ JOB-TO-BE-DONE
🔁 TOOLS + LOOP

Same model + same tools, opposite outcomes. One solves the right job. The other loops perfectly on the wrong task.

→ https://t.co/4KqkygFalA

[davidhop @davidhop]

What is an "AI agent," actually?

A model + tools + a loop:
model → tool → observation → repeat

It breaks 3 ways:
1. Loops the same call forever
2. Calls a real tool with made-up args
3. Forgets the goal mid-task

That's it. Strip the marketing.

[davidhop @davidhop]

Most adults aren't tired — they're under-recovered.

The 5-step fix:
✓ Same wake time
✓ Morning light
✓ Cool, dark, quiet bedroom
✓ Calm wind-down
✓ Up after ~20 min? Leave bed.

Full cheat sheet ↓
https://t.co/4bedbMp390

[davidhop @davidhop]

Heimlich Maneuver in 5 panels:
1. Ask: are you choking?
2. Call 911 (000 in AU)
3. 5 back blows between the shoulder blades
4. 5 abdominal thrusts above the navel
5. Repeat — start CPR if they collapse

Not for pregnant/infants <1.

https://t.co/DVyKfrRXFx

[davidhop @davidhop]

Reading a Nutrition Facts label, in 6 panels:
→ servings (the trap)
→ calories per serving
→ macros: fat/carbs/protein
→ %DV (Percent Daily Value): 5% low, 20% high
→ ingredients big→small by weight
→ spotting added sugars

https://t.co/77B0x65ldK

[davidhop @davidhop]

The water cycle in one page.

A water molecule spends ~3,200 years in the ocean and ~10 days in the atmosphere.

5-panel cheat sheet. Free.

→ https://t.co/r3IDMAMOhQ

[davidhop @davidhop]

@HeyGen Dev

[davidhop @davidhop]

Hoopy Explains How to Fix Your Left-Wing Three

Hoopy explains the left-wing three-point shot in 4 panels: square the hips to the rim, stack shoulder-elbow-wrist in one vertical plane, snap a 45-60 degree arc on the way up, and … https://t.co/O6mIQfldbc

[davidhop @davidhop]

TL;DR

Be a sniper, not a poet.
Think like your guessers, not yourself.
Avoid the assassin like it's radioactive.
Pick risk size by board state.
Play like the next 3 turns matter, not just this one.

Full cheat-sheet → https://t.co/hHQ92UjYSS

[davidhop @davidhop]

How to win at Codenames 🕵️

5 spymaster tips most teams get wrong (a thread):

1/ ONE WORD. ONE NUMBER. NO POETRY.

A clue is a sniper rifle, not a flashlight. If your "clever" word also fits a neutral or enemy card, it's not a 4-clue. It's a coin flip.

[davidhop @davidhop]

5/ Plant breadcrumbs. Win the next turn before it starts.

Advanced move: set up themes across turns. Your team learns your style and connects dots faster. Opponents can't decode the pattern from outside.

Compounding advantage.

[davidhop @davidhop]

The bet: data-centre hardware depreciates over 6 years. At ~35% cloud op margins, the math works IF AI workload demand keeps compounding through 2030.

If it doesn't, we'll find out together.

[davidhop @davidhop]

Two Sydney Opera Houses. Per day.

That's the daily run-rate of US hyperscaler AI capex this year. The data behind it 🧵

[davidhop @davidhop]

Per-day rate: ~$1.7B of new infrastructure ordered every single day. Two Sydney Opera Houses (in today's dollars). Daily.