Thomas Jordan, Chairman of the Swiss National Bank (SNB), expressed doubts about the prospect of the Swiss central bank buying bitcoin at the annual shareholder meeting on Friday. Jordan pointed out that adding bitcoin to the Swiss National Bank's reserve assets (including gold, foreign currency, bonds and stocks) could have potential negative effects, such as increased carbon emissions. He then emphasized the energy consumption associated with bitcoin mining and trading. We have not yet decided to invest in bitcoin, and there are actually good reasons not to. Currency reserves are for international payments. They must be liquid. They must be sustainable, and we must be able to sell and buy them. Previously, crypto advocates had called for changes to Swiss legislation to allow cryptocurrencies to be included in national currency reserves.