How we invalidated 7 business ideas in 4 months

Jan Riethmayer
Jan Riethmayer
Published in
5 min readFeb 24, 2022

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The main reasons startups fail are that they don’t work on a real problem or their solution is not good enough. — Marty Cagan, SVPG

Photo by Kind and Curious on Unsplash

At Kaizera, we assume startups and their people will impact the rate of change in the world the most. We regularly ask ourselves, how can we be multipliers for those entrepreneurs? This is the consistent theme we focus on while giving us a lot of…

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Jan Riethmayer
Jan Riethmayer

People say they join companies because of what I stand for. My expertise is building businesses as CTO, from inception to scale. radical-cto.com