A couple of treats for the technologically-minded in the latest episode of Science Weekly, our regular sci-tech podcast.
Theoretical physicist Michio Kaku - who has a new BBC TV series in which he explores the cutting edge science of today, tomorrow, and beyond - says we are living in a time of great possibility.
We also catch up with the inventors of the world's most efficient robot car, and hear from the scientist who's trying to make computers sound more human.
Listen to it now, or visit the Science blog to give us feedback.
