Privacy policy

1. Who is responsible

Controller for this website within the meaning of the GDPR:
Christoph Baier, c/o Ambi-Vation GmbH, Rollbergstraße 28A, 12053 Berlin, Germany.
Contact: via the contact form of Ambi-Vation GmbH.

2. In short

This is a static website. It uses no cookies and no advertising. Visits are counted anonymously with Vercel Web Analytics (see section 4). Content from third parties (videos, share price charts) only loads after you click on it.

3. Hosting and server log files

This website is hosted by Vercel Inc., 440 N Barranca Ave #4133, Covina, CA 91723, USA. When you visit a page, the server automatically processes technical data that your browser transmits: IP address, date and time of the request, the requested page, referrer URL, browser and operating system. This is necessary to deliver the website securely and to detect misuse. Legal basis: Art. 6(1)(f) GDPR (legitimate interest in a secure, working website). Vercel stores these logs only for a limited period and processes them on my behalf under a data processing agreement. Data may be processed in the USA; Vercel is certified under the EU-U.S. Data Privacy Framework (adequacy decision of the European Commission, Art. 45 GDPR). Details: privacy notice of Vercel.

4. Visitor statistics (Vercel Web Analytics)

To see which pages are read, this website uses Vercel Web Analytics by Vercel Inc. (address see section 3). It sets no cookies and stores nothing on your device. To tell visits apart, a hash value is formed from the request; it is discarded after 24 hours. According to Vercel, only anonymised data is stored. Recorded are the page visited, the referring website, country, browser, operating system and device type. The data is only evaluated in aggregated form and not combined with other data. Legal basis: Art. 6(1)(f) GDPR (legitimate interest in understanding how the website is used). You can object at any time; blocking JavaScript or using a content blocker also stops the counting. Details: Vercel Web Analytics privacy information.

5. Fonts

Fonts are hosted on this server. No connection to Google or other font providers is made.

6. Embedded videos and charts (two-click solution)

Some articles contain videos from YouTube (Google Ireland Ltd.), Vimeo (Vimeo.com Inc.) and TED (TED Conferences LLC), as well as share price charts from Eulerpool. These are not loaded automatically. Only when you click "Load video" or "Load chart" does your browser connect to the provider, which then receives at least your IP address and the page you are on, and may set cookies. YouTube videos are embedded in privacy-enhanced mode (youtube-nocookie.com); Vimeo videos with the "do not track" parameter. Legal basis: your consent by clicking, Art. 6(1)(a) GDPR and § 25(1) TDDDG. Data may be transferred to the USA. For details, see the providers' privacy policies.

7. Links to other websites

Links to other websites, such as LinkedIn or ambivation.com, open in a new window. Only once you follow a link does the other provider process your data, under its own privacy policy.

8. Contact

This website has no contact form of its own. If you contact me via the form of Ambi-Vation GmbH or via LinkedIn, the privacy policy of the respective provider applies. I use the data you send only to handle your enquiry. Legal basis: Art. 6(1)(b) and (f) GDPR.

9. Your rights

You have the right to access (Art. 15 GDPR), rectification (Art. 16), erasure (Art. 17), restriction of processing (Art. 18), data portability (Art. 20) and to object to processing based on legitimate interests (Art. 21). You can withdraw consent at any time with effect for the future (Art. 7(3)).

You also have the right to lodge a complaint with a supervisory authority, for example the Berlin Commissioner for Data Protection and Freedom of Information (Berliner Beauftragte für Datenschutz und Informationsfreiheit).

10. Changes

This privacy policy is updated when the website changes. Last updated: November 2026.