A PwC survey of over 4,700 CEOs worldwide found more executives feeling optimistic about the global economy but also worried their companies won't survive 10 years without major changes. Thirty-eight percent were positive on the economy, up from 18% last year, but 45% feared their business won't be viable without reinventing due to AI and climate challenges, up from 39%. Seventy-five percent of executives expect AI to majorly alter their business within three years, but they also worry about the need for staff training and increased cybersecurity and misinformation risks.