Guides & How-tos · Worked examples · Real numbers

Do it right, with real numbers

Step-by-step how-tos, head-to-head comparisons and honest roundups — every guide worked through with current figures, then backed by a RECATOOLS calculator or AI-directory entry so you can act on it.

299 guides published 17 topic areas Latest guide Sep 2026

All 299 AI & ML 60 Developer Tools 48 Finance 33 Chinese Culture 29 Cybersecurity 26 Science 16

A large rusted iron padlock hanging from the hasp of a heavy studded wooden door. Its shackle is swung open and unlatched, so the lock is in place but fastening nothing.

Cybersecurity 6 min

Many Security Policies Permit the Attacks They Are Meant to Block

Eighteen ASEAN banks, government portals and telcos send a mean of 3.7 of 5 browser-protection headers, which is better...

Kenji Tanaka

Pub. 19 Aug

A straight dirt road running away from the camera between two bamboo fences, toward a large forested hill on the horizon. A few tin-roofed houses sit at the far end, and limestone peaks fade into haze behind.

Developer Tools 6 min

Your AI API Call Leaves the Country

From a server in Singapore, OpenAI's API accepts a connection in 6.2ms and takes 237ms to say anything. Anthropic's: 2.3...

Maya Lin

Pub. 19 Aug

A brass seal stamp bearing a lion crest, lifted just clear of the red wax it has pressed into an old handwritten document. The wax has spread beyond the impression and the script underneath is still legible at the edges.

Cybersecurity 6 min

Signed Is Not the Same as Traceable

Every package npm serves carries a registry signature, so 100% of our dependencies look verified. Only 10.8% of the ones...

Priya Nair

Pub. 19 Aug

A weathered NO TRESPASSING sign and a second sign reading RIGHT TO PASS BY PERMISSION, both nailed to a post on a sagging wire fence. To the right of the post the fence has been pulled open, leaving a gap into the dry field beyond.

AI & ML 6 min

Who Actually Blocks the AI Crawlers

robots.txt is the one place a publisher's position on AI training has to be written down in public. We read it for 19 ne...

Kenji Tanaka

Pub. 19 Aug

An antique wooden telephone switchboard, its rows of brass jack sockets and cloth-covered cables still wired into place, with two handset earpieces resting on the bench in front of it.

Developer Tools 6 min

Your Bank Is Still on IPv4

We asked DNS whether 18 institutions across six ASEAN economies — the largest bank, the government portal and the bigges...

Maya Lin

Pub. 19 Aug

A plain brass padlock fastened through the steel latch of a shipping container door, photographed close up. The door behind it is painted teal and covered in graffiti, and the latch and bolt heads are scuffed with use.

Cybersecurity 6 min

Most of an AI Attack Is an Ordinary Attack

MITRE's AI threat matrix, ATLAS, shares 13 of its 16 tactics with classical ATT&CK. Only two are genuinely new — and jus...

Priya Nair

Pub. 19 Aug

A worker in a frost-covered jacket and heavy gloves aims a handheld barcode scanner at a cardboard box in a cold-storage warehouse, the scanner's red beam falling across the box while breath fogs the freezing air. Racking recedes into the dark blue background.

AI & ML 6 min

What You Are Trusting When You Download a Model

We checked the 1,000 most-downloaded models on the Hugging Face Hub. 99% ship a model card, so documentation is not what...

Kenji Tanaka

Pub. 19 Aug

Four green memory modules fanned out on a wooden desk, their black chips and gold contact edges in close focus.

Developer Tools 7 min

What We Actually Run, and What It Would Cost Managed

Our whole production stack holds 1.48 GiB — 70% of it MySQL, and just 107.8 MiB serving every page. The surprise was tha...

Maya Lin

Pub. 18 Aug

The rear of a server rack, rows of stacked machines with blue and grey network cables running between labelled ports and small green status lights.

Developer Tools 7 min

What Our Own Site Sends, and Why We Can't Tell You Exactly

We tried to measure our own monthly egress with root on the machine. Three sources gave three answers, and extrapolating...

Kenji Tanaka

Pub. 18 Aug

A blue graduation cap and diploma folder lying on grass, with gold cords and two gold tassels draped across them.

Finance 6 min

What a Tuition Total Leaves Out

Our own calculator says a four-year degree costs $54,400, and discloses that it excludes fee changes between years. We m...

Sarah Chew

Pub. 18 Aug

The blue European Union flag with its ring of twelve gold stars flying from a pole against an overcast sky, with other national flags rippling behind it.

AI & ML 7 min

Can a Tool Directory Tell You Your AI Act Risk Tier?

We tried to tier all 1,370 entries in our own AI directory against the EU AI Act. A keyword scan gave 42 hits, 26 of the...

Priya Nair

Pub. 18 Aug

A macro photograph of a green circuit board, rows of small black integrated circuits and resistors in sharp focus across the middle and blurring towards the edges.

Science 7 min

Why a 1,000-Qubit Computer Has Zero Usable Qubits

Physical qubits and logical qubits are different currencies. At current error rates one logical qubit costs about 1,681...

Nadia Rahim

Pub. 18 Aug

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