Thematic investing is having a moment—and in 2025, it’s about more than just AI. In this episode of The Next Big Thing, Mobeen Tahir puts Christopher Gannatti, Global Head of Research at WisdomTree, in the hot seat to break down the megatrends shaping markets this year. From the scale of AI infrastructure and the rise of humanoid robots to Tesla’s reinvention, nuclear energy’s comeback, and the battle for data centre dominance, they unpack the major narratives every investor should be watching right now—and where the opportunities may lie.