Selina, known online as selballmer, got into the Altius Labs ambassador program in April 2025 as part of its first cohort — around 100 people selected from nearly 4,000 applicants. Altius Labs builds high-performance parallel execution infrastructure for blockchains, decoupling execution from consensus and storage to enable significantly higher transaction throughput. In August 2025, Selina became the first ambassador promoted to Paddock Crew, the highest role in the program, and remains the only one to hold it. She focuses on blockchain infrastructure education — breaking down technical concepts in a way that's accessible — and stays consistently active in the community. The Altius Labs team has shared her content through their official channels on several occasions. Links: x.com/selballmer — selballmer.medium.com — binance.com/en/square/profile/selina