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Tell me who you are and I will send a one-time sign-in link to your email. It works once and expires in 15 minutes.

Privacy notice updated, version 1.3, 16 October 2026: calculator start and completion are now part of my linked activity record; I may use activity to decide whether and how to contact you; you can send me a calculator scenario; the marketing consent text has a second version. Since version 1.2 the visit statistics through PostHog work without consent and are not linked to your registration. Read the privacy notice

I can see which library items you open and when you book a call, so I can improve the library and follow up when it is relevant. You can object at any time. Details are in the Privacy notice.