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Articles
Articles
April 2026
How Personal Is a Personal Trainer, Really?
The economics of personal training at scale, and what "personal" actually means when a trainer is managing 160 clients via an app.
May 2026
Email Aliases for Privacy and Security
Your email address is one of the most stable identifiers you have. Using aliases makes it harder for anyone to chain together information about you — and it costs nothing but a few seconds at signup.
June 2026
You Already Use AI Directly. So Why Would You Want a Separate AI-Powered Service?
If you already use ChatGPT or Claude, why pay for a separate AI coaching service? The answer is less about features than about what happens to the information you share.
July 2026
Self-Hacking, or: Psyching Yourself Into a Fitter Future Self
Pre-commitment — the behavioral-economics strategy of arranging your circumstances so your future self wins — explains why a trainer works, and how AI coaching can use the same mechanism without creating dependency.
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