On the other hand, we probably shouldn't be focusing on non-fungibility and tainted coins because these erroneous and misleading concepts anyway lose their relevance once we completely get rid of the need to use fiat on- and off-ramps. Instead, we should be promoting the advantages of the bitcoin circular economy, which is an economy where all prices are being measured in bitcoin terms, where everyone is transacting and earning exclusively in bitcoin, where all exchanges are voluntary and mutually beneficial, and where government intervention is ineffective, if even possible. In other words, instead of promoting the "store of value" function of money, which makes people think about their future spending and whether their coins are clean enough to spend in the future, we should be promoting the "medium of exchange" feature, because pure P2P interactions without involving nefarious intermediaries result in a healthy economy and also perfectly aligns with core principles of bitcoin.