According to @Celo, @Marek_ has a packed schedule of talks and panels in Buenos Aires on Nov 18, 2025, starting at EY and the Enterprise Ethereum Alliance event, continuing at PrivacyEthereum's ZKID and Client Side Proving Day, and including a Stable Summit keynote. Source: @Celo on X, Nov 18, 2025. The announcement lists the organizers as EY, Enterprise Ethereum Alliance, PrivacyEthereum, and Stable Summit, and specifies that the activities are in Buenos Aires. Source: @Celo on X, Nov 18, 2025.