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AI for Executives

How executives use AI, how to do it well, and what it means for your job. Written for people who set the direction, not people who build models.

243 articles · Updated Nov 13, 2026
Tiny figurines with audit clipboards walk in endless circles along the repeating coils of a giant looped transformer.
AI Models & Industry ·

What Are Looped Transformers in AI?

Looped transformers reuse the same layers repeatedly to reason in hidden math, not words. Here's how they work, why OpenAI's Astra uses them, and the safety tradeoff.

looped transformersrecurrent depthOpenAI Astra
A person welds together a custom dashboard from glowing glass panels, while a generic store-bought dashboard leaks red ink onto the desk beside them.
Build vs Buy Software ·

Niche SaaS Is Bleeding Out as Clients Build It Themselves

AI coding agents let teams replace mid-priced SaaS in days, not weeks. Here's the data on who's building, who's buying, and what still needs a vendor.

build vs buy internal tools with AIAI coding agents replace SaaSinternal tools with AI
A person peels the yellowed, faded top layer off a continuous legacy code printout to reveal clean, glowing modern code underneath.
Build vs Buy Software ·

5 Legacy Codebases AI Can Now Modernize and Let You Own

From 1993 Amiga assembly to 220 billion lines of COBOL, AI now automates the expensive part of modernization: understanding old code. Here's the proof.

AI legacy code modernizationmodernize COBOL with AIAI code migration
Tiny figurines compare price tags attached to a giant ID card.
Build vs Buy Software ·

Building vs. Buying Identity Verification: The Real Cost Comparison

Per-check pricing makes buying identity verification look cheap. The IDScan and IDMerit breaches show what that price leaves out. Here is the real math.

cost of building vs buying identity verificationidentity verification SaaS breachKYC build vs buy
A standard home network router where miniature brass plumbing valves are attached to each of the ethernet ports to manually shut off the flow of trackers.
Build vs Buy Software ·

How to Block Network Trackers With DNS

ISPs and IoT devices monetize every DNS query by default. Here's how self-hosted and protective DNS filtering block trackers network-wide.

block network trackers dnspi-hole setupprotective dns
A computer cursor pulls the bottom edge of a simple text autocomplete menu downward, unfolding it into an impossibly long, physical sheet of dense mathematical code.
AI Models & Industry ·

How Do LLMs Actually Work? Beyond 'Next-Token Predictor'

LLMs predict the next word, but that training objective builds real internal reasoning. Here's the proof, including a 13M-line Lean proof of Fermat's Last Theorem.

how do llms actually worknext-token predictorlarge language models explained
A cursor pulls a translucent next-state node out of a solid node in a node graph, illustrating AI simulating the next state.
AI Models & Industry ·

What Is AI World Modeling?

AI world modeling means predicting the next state of an environment, not just the next word. Here's what it is, where it came from, and why it matters for coding agents.

AI world modelingworld model AICode World Model
A cursor drops a bulky 'update' module onto a software dashboard, physically crushing the useful panels beneath it.
Build vs Buy Software ·

Verschlimmbesserung: Why SaaS Software Gets Worse Over Time

A German word explains why subscription software keeps 'improving' its way into being worse and pricier. Here's the mechanism, the cost data, and the fix.

why does saas get worse over timeverschlimmbesserungenshittification
A cursor drags a glowing green padlock onto the header of a $12.9 billion purchase receipt to lock it.
AI Models & Industry ·

Nvidia's Hugging Face Deal: What It Means for Open-Source AI

Nvidia's reported $12.9B bid for Hugging Face would put open-source AI's biggest hub under one chipmaker's control. Here's the impact and why owning your infrastructure matters.

Nvidia Hugging Face acquisitionopen source AI infrastructureNvidia open source AI
A person holds an impossibly long receipt that trails across the floor, crossing out dozens of duplicate line items with a thick red marker.
Build vs Buy Software ·

The 2026 SaaS Waste Breakdown: The True Cost of Rented Software

2026 data shows 25-48% of SaaS budgets go to unused licenses and duplicate tools. Here's the real breakdown and why owning software beats renting it.

how much saas budget is wastedsaas waste 2026unused software licenses