Kurzweil predicts that, thanks to exponential progress, by 2025 we’ll have 100% renewable energy (and a grid to go with it) and then 2045 is the Singularity. AIs will be at human-level brain intelligence next year. We’ll be able to stop, and then reverse aging, within 5 years.<p>Kurzweil comes across as an old man, slow to respond to Rogan’s rapid-fire and well-informed questions.