Related questions on Metaculus:

• Will artificial superintelligence precede the achievement of longevity escape velocity?
• Will longevity escape velocity follow the development of effective life extending therapies?
• When will biological lifespans increase faster than 0.75 years per year?

Wikipedia: Longevity escape velocity --

In the life extension movement, longevity escape velocity (LEV) or actuarial escape velocity[2] is a hypothetical situation in which life expectancy is extended longer than the time that is passing. For example, in a given year in which longevity escape velocity would be maintained, technological advances would increase life expectancy more than the year that just went by.

For many years in the past, life expectancy at each age has increased slightly every year as treatment strategies and technologies have improved. At present, more than one year of research is required for each additional year of expected life. Longevity escape velocity occurs when this ratio reverses, so that life expectancy increases faster than one year per one year of research, as long as that rate of advance is sustainable.