Blog
Blog, Page 4 of 11
Thoughts on energy, digital finance, commerce and agentic development – as they happen.
Archive
Earlier articles
From more than 10 years of blogging: founder life, travel and the early crypto/Web3 years. German articles are in the German blog →
Commerce
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Cardmarket, Broken Down: The Numbers, the Fees and an Interface That Is Closing
September 8, 2026
Finance
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Germany's New Retirement Account: How One Law Redistributes a Market
September 7, 2026
Energy
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Split Air Conditioning and the Subsidy Question: What the Rules Actually Say
September 6, 2026
Energy
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Solar Subsidies: What Is Left in 2026 and Where the Money Moves Next
September 4, 2026
Founder Life
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Turning Forty: Over Twenty Years in Business, and the Best Is Yet to Come
September 3, 2026
