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Daniel Keller's Book of Knowledge

Exciting stuff about Product & Technolog, Longevity, Flying, and more

Product and Technology
Product & Technology

Experience and learnings from my over 25 years professional career as CTO, CPO or CIO.

Longevity
Longevity

How I try to maximize my life span and health span by mastering 6 pillars of longevity:Sleep -Exercise -Eat -Mental -Boost -Avoid

Flying
Flying

Knowledge about flying as private pilot for the last 10 years, guides on EASA and FAA PPL license, Instrument Rating and tips for Cirrus aircrafts.