Octopus Energy is now the UK's largest energy supplier - a position British Gas held unchallenged for over three decades. Rebecca Dibb-Simkin, founding Chief Product & Marketing Officer, will share the strategy behind their success: a product-first philosophy, a relentless focus on building trust in a low-trust category, and the long-term brand thinking that made it possible. Plus, she'll reflect on a career trajectory that began with an unlikely ambition - and why it proved to be the ideal grounding for the role…