Subscribe to unlock this articleTry unlimited accessOnly $1 for 4 weeksThen $75 per month. Complete digital access to quality FT journalism on any device. Cancel anytime during your trial.Explore more offers.FT Edit$49 per yearAccess to eight surprising articles a day, hand-picked by FT editors. For seamless reading, access content via the FT Edit page on FT.com and receive the FT Edit newsletter.Standard Digital$45 per monthEssential digital access to quality FT journalism on any device. Pay a ...