The article explores how tourists use different types of currency before and after COVID-19, focusing on Bitcoin. The researchers used both numbers and interviews to study this. They found that tourists still prefer using cash over cards or virtual currency. However, when something like COVID-19 affects the economy, tourists rely more on virtual currency. Tourists value Bitcoin for its storage, value, convenience, and investment potential. They plan to keep using Bitcoin because they find it satisfying, convenient, and a good investment.