According to @6529Guardian, the EU would have been better off accepting and regulating Libra, highlighting the policy trade-offs around global stablecoins and market structure (source: @6529Guardian on X, 9 Sep 2025). Libra rebranded to Diem in 2020 and subsequently sold its assets in 2022 after sustained regulatory opposition, effectively ending the project (source: Diem Association announcement, 1 Dec 2020; Diem Association press release, 31 Jan 2022). The EU instead implemented MiCA, with stablecoin provisions applying from 30 June 2024 that require issuer authorization, robust reserves, redemption at par for e-money tokens, and EBA/NCA supervision (source: Regulation (EU) 2023/1114, Official Journal of the European Union, 9 June 2023). MiCA limits offering and marketing of stablecoins in the EU to authorized issuers and sets disclosure, governance, and risk-management standards, reshaping which stablecoins can be listed on EU-facing platforms (source: Regulation (EU) 2023/1114, Titles III and IV; European Banking Authority supervisory statements, 2024). Stablecoins serve as core settlement rails for crypto trading, so regulatory constraints directly affect BTC and ETH order-book liquidity and spreads on exchanges (source: Bank for International Settlements Quarterly Review, September 2022, Stablecoins: risks and regulation; European Central Bank Financial Stability Review, 2023). Issuers have adjusted: Circle secured an e-money institution license in France in 2024 to bring USDC and EURC under MiCA, reinforcing euro-denominated stablecoin rails for EU participants (source: Circle press release, 1 July 2024; Autorité de Contrôle Prudentiel et de Résolution announcement, 1 July 2024).