AI
Answer first, question second
Software taught us to learn tools before we got results. A publication built with AI can hand readers the result and keep the tools out of sight.
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AI
What a context window is, and why it fills up
A language model remembers nothing between requests. Everything it knows about your conversation has to fit on one page, and that page has an edge.
Finance
The arithmetic of fees
A one percent annual fee sounds like one percent. Held for thirty years, it takes about a quarter of what you would have had.
Software
Boring technology ages well
The most durable parts of the web are the least exciting ones. A page of plain HTML written decades ago still opens today.
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Hardware
Performance per watt is the number that matters
For years chips were judged on speed alone. Battery life and heat have made efficiency the measure that decides what a device can do.
Finance
The rule of 72
Divide 72 by an annual growth rate and you get roughly the number of years it takes to double. It is mental arithmetic that makes compounding visible.
Software
Plain text outlives the app
Applications come and go, and the files they leave behind are often unreadable without them. Text files have no such problem.