Su Zhu, co-founder of the defunct hedge fund Three Arrows Capital (3AC), shared his positive prison experience, stating he had the 'best sleep' of his life there. Zhu served a four-month sentence in Singapore for defying a court order. He appreciated the simplicity and routine of prison life, including reading and exercise. Meanwhile, in the U.S., Sam Bankman-Fried, founder of the collapsed FTX exchange, is adapting to the economy of New York’s Metropolitan Detention Center using mackerel as currency. Bitcoin is currently trading at $39,989, down 3.85%.