It's both. The article does mention life expectancy.
However, immigration doesn't solve the problem, it merely delays it. Even importing tax payers, and presumably increasing manufacturing base and jobs available to go with it as well, those immigants themselves will one day grow old and retire. Then there will be even more old, retired people than there would otherwise have been.
![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png){kind=small}
no subject
However, immigration doesn't solve the problem, it merely delays it. Even importing tax payers, and presumably increasing manufacturing base and jobs available to go with it as well, those immigants themselves will one day grow old and retire. Then there will be even more old, retired people than there would otherwise have been.