At the Emmy Awards on September 15th, Apple's new chief executive John Ternus stepped onto the red carpet not merely as a guest but as a messenger, carrying the iPhone Duo — the company's long-anticipated foldable smartphone — into public view for the first time. The choice of venue was no accident: by debuting a $1,999 device among entertainment's most influential figures rather than at a traditional tech showcase, Apple signaled that it sees the foldable form factor as a cultural statement as much as an engineering achievement. The moment marks Apple's formal entry into a market Samsung has