Test your ecommerce analytics before real customers arrive: simulated shoppers as Markov chains

After hours, a shopkeeper moves wooden figures along chalk arrows on his counter between labels from Home to Pay and Exit, beside a notebook with three ticked rates and a wooden cube numbered 42, under a blackboard that reads A shop with no customers.

Test your ecommerce analytics before launch: simulate shoppers as Markov chains, check them against your funnel, run them in real browsers.