The Modern Data Stack Conference 2021 features over 40 sessions across four virtual stages, with keynotes by industry leaders. Key topics covered include insights as a service, reverse ETL, interactive data applications, and self-service analytics. Can't-miss sessions include discussions on the future of analytics, making businesses data-literate, leveraging analytics to survive a pandemic, machine learning acceleration, predictable revenue from ecommerce and product analytics, moral psychology in persuasion, self-service analytics, insights as a service, and more. The conference aims to provide valuable insights for professionals working in the data space.