A customer uses a bitcoin automated teller machine (ATM) in a kiosk Barcelona, Spain, on Tuesday, Feb. 23, 2021.Angel Garcia | Bloomberg | Getty ImagesCiti thinks bitcoin is at a “tipping point” and could one day “become the currency of choice for international trade” as companies like Tesla and PayPal warm to it and central banks explore issuing their own digital currencies.”There are a host of risks and obstacles that stand in the way of Bitcoin progress,” the U.S. investment bank’s global perspectives and solutions team wrote in a note Monday.”Bitcoin’s future is thus still uncertain, but developments in the …
