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Try things like:
"When did he quit his job?" "Show me all dinners with his wife" "How much time did he spend on his side project last month?" "Show me a bar chart of gym sessions per month"
It's actually a time tracker I built for myself — I've been logging every hour of my life in spreadsheets since 2014 (44,000+ entries). The demo data is there so you can try it without entering your own data first.