Author: Jose S
Cohort retention charts without lying
Cohort retention charts can educate or quietly sell a story. Learn axis honesty, sample size labels, period alignment, and a checklist that keeps finance retention curves from lying.
Privacy when pasting data into chat tools
Pastes into chat tools are processing decisions. Learn a risk ladder, what never to paste, and how synthetic samples keep AI helpful without shipping real customer rows.
Which AI product should I try first
A one-breath decision tree for which AI product to open: writing, coding, office files, privacy, or images and live answers. Defaults you can try first, plus the mix-ups…
Grok threads and projects: habits that survive a messy week
A sixty turn Grok thread that starts as a paragraph rewrite can end with payroll numbers mixed in. Name one job per thread, park files with care, and…
When Gemini is the wrong tool
Gemini is the wrong tool for source-of-record systems, licensed advice, banned data, and unreviewed high-stakes work. Part 7 closes Learn Gemini with a wrong-tool map, a good-enough checklist,…
