Why does it matter?
Lifespan doubling would reshape retirement, healthcare, family life, and how long people plan for.
Direct quote
Doubling of the human lifespan. This might seem radical, but life expectancy increased almost 2x in the 20th century (from ~40 years to ~75), so it is on trend that the compressed 21st would double it again to 150.
Dario Amodei