At 33, Harry Kane — England's captain and record goal scorer — has begun to look past the horizon of his football career, contemplating a transition to the NFL as a kicker, a role he believes his lifetime of penalty-taking has quietly prepared him for. The idea is not a whim but a considered possibility, one that speaks to the restlessness of elite athletes who, even at their peak, are already imagining what comes next. Kane's story sits within a long human tradition: the search for new arenas in which to test a hard-won mastery.