The blog post discusses major business revolutions, focusing on industrialization, globalization, and the internet, which triggered a software disruption. Nokia serves as an example of a company that struggled to transition from hardware to software business. The post argues that a new revolution is emerging: data business and data ecosystems. This shift is driven by the increasing prevalence of software, data concentration among fewer players, growing awareness of data’s value, and regulations like GDPR. The author provides practical tips for building a data strategy, including identifying unique data assets, understanding one’s role in data ecosystems, prioritizing customer needs, and maintaining trust through control. Six key prerequisites for successful personal data business are outlined: accuracy, error-free data, completeness, availability, consent management, and transparency. The post concludes by warning that companies should master current changes before the next wave arrives.