Children born today could see average life expectancy pass 100 years within a generation, healthcare executives predicted at the Fortune Leaders Forum in Macau on Sept. 8.

Yet the bigger problem may be figuring out how to pay for it.

“The question is not the availability of all these new technologies. It’s how we’re going to make good medical care accessible to millions, and how we’re going to make it affordable as we age,” said Kelvin Loh, group chief healthcare officer at insurer AIA.

One in four people in Asia-Pacific will be over 60 by 2050, up from around one in seven now. That shift will put even more strain on healthcare systems due to a greater incidence of chronic conditions.

AI drugmakers are betting they can ease that burden by tackling aging at its source, and one says it now has early evidence it’s possible.