How are AI and automation going to affect pensions? If many jobs become automated who contributes to the pension funds and Social Security to support the previ

How are AI and automation going to affect pensions? If many jobs become automated who contributes to the pension funds and Social Security to support the previous generations? All the discussion I see here seems to assume the future is like today. Those lists of which jobs are most likely to be automated soonest may also be lists of which pensions will not be funded in the future.