When Elena Ikonomovska couldn't get answers from medicine, she built the technology to find them. Reddit's first data scientist and the ML engineer whose Google prototype became foundational to BigQuery, Elena co-founded Diadia Health in 2021. It is the first AI platform to apply causal reasoning across multi-omic data, analyzing 700,000+ genetic variants, 100+ metabolic pathways, labs, and metabolites as one interconnected biological system to surface root causes in complex chronic disease that standard diagnostics miss.