No client · No brief · No deliverable
Second opinions on commercial questions nobody asked me to look at. Each one ends in something you can run on your own numbers, in your own browser, without sending them anywhere.
Averaging is how loss-making cohorts disappear. Enter your channels one level down — six numbers each — and the Blend Test shows how much of the contribution your good channels create is being cancelled by the ones below the line.
Run the Blend Test →Nearly every operator ends the add-on when the mobile contract ends. Nobody has ever published a measurement showing it retains anyone — and the evidence people borrow to argue the other side is not from telecom either. Here is the threshold, and a test that reads in one month.
Read the note →Send me the context and what you're trying to understand.
No calendar. No discovery call.