Woofun AI reports that YC partner and Monzo co-founder Tom Blomfield has announced a temporary leave of absence from Y Combinator to join Anthropic. He will collaborate with co-founder Tom Brown on compute-related initiatives, specifically securing chips, cloud services, and data center resources for model training and deployment. Blomfield emphasized that AI is entering an early stage of recursive self-improvement, identifying compute supply as a critical issue. He remains on leave from YC without a formal departure announcement.