Dispatches from the probable future paint a grim picture: according to prediction markets, the world is unlikely to witness a single polio-free year before the decade closes. Kalshi exchange places the odds at just 6%, suggesting that barring a dramatic reversal, the ancient paralytic scourge will claim at least one victim somewhere on earth through 2029.

The stakes are not abstract. Polio, largely vanquished across the industrialized world since the mid-twentieth century, persists in pockets of Pakistan and Afghanistan, complicated by vaccine-derived strains cropping up in regions previously thought secured. The Global Polio Eradication Initiative has logged remarkable progress over four decades, yet market consensus prices in the stubborn final miles of that journey — conflict zones, vaccine hesitancy, and crumbling health infrastructure conspiring to keep eradication just out of reach.

A breakthrough in access — emergency ceasefires enabling mass vaccination campaigns, or accelerated deployment of novel oral vaccines — could upend these calculations sharply.