Buying groceries for Lesson 2 What is Money at Esperamos Supermarket Curacao. My First Bitcoin teacher Runy Calmera started this lesson by handing all students 5 USD on their Wallet of Satoshi and giving them a list of groceries. These groceries were used in the excercise on What is money. The MPB Education of cohort 1 is sponsored by the Bitcoin OG Peter Kroll’s family Runy BTC Curacao Institute Island Wealth