Bitcoin David Marcus and His Calibrated Effort to Save Libra Share Tweet Share Share Email Comments Calibra’s David Marcus quickly rose to prominence as one of the most important people in crypto in 2019 Related Items: Share Tweet Share Share Email Click to comment Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment Name * Email * Website Save my name, email, and website in this browser for the next time I comment. Notify me of follow-up comments by email. Notify me of new posts by email. This site uses Akismet to reduce spam. Learn how your comment data is processed.