If each $1000 spent by CERF saves one life of 40 years remaining duration, then $1 saves 0.04 life-years. If the $500 million in CERF would be replenished every 2 years, then each year $250 million would be spent, saving 10 million life-years per year, or 100 million life-years per decade.

Human News aims to devote 1 character to each 40,000 life-years, or 1000 average lives. Thus, the number of characters could be 100 million life-years / 40,000 life-years/character = 2500 characters.