The World is Ageing

According to a report by the US Census Bureau, the proportion of the world population over the age of 65 will triple by 2050, with Old Man Europe leading the charge. Rebecca Wilder wonders:

...what will happen to aggregate demand for goods and services as an
increasing number of people retire, effectively switching from saving mode to
dissaving (spending) mode. Price pressures?

Of course, that's assuming that people over the age of 65 will actually, ya know, have enough savings be able to retire in the first place. Besides, I suspect that by 2050 the benchmark age for retirement in OECD countries will no longer be 65.