This document summarizes a presentation on weak signals and exploring the future given by Geoff Mulgan of Nesta. The presentation covered: - What weak signals are and how they can provide insights into emerging issues and potential changes. - Different methods for identifying, analyzing, and interpreting weak signals such as horizon scanning, scenarios, and speculative design. - Examples of weak signals that have been observed recently and potential interpretations of their meaning. - How to apply weak signal analysis to explore possible futures and inform policy and strategy development. The document concludes with a question and answer session where the audience asked about specific tools and methods for identifying and making sense of weak signals.