In this talk at the CERN Colloquium on Cosmological Physics Lawrence Krauss tackles the topic of cosmic inflation. The last decade or two have represented the golden age of observational cosmology, producing a revolution in our picture of the Universe on its largest scales, and perhaps also its smallest ones. One of the ideas that has in many ways revolutionized our understanding of cosmology is the cosmic inflation. In many ways inflation is the cure for many problems haunting the model of standard cosmology. However, we still do not know, which model, if any, describes the real universe. And, as Lawrence Krauss discusses, proving the theory of inflation might not be as easy as it might seem. In addition, Krauss also talks about the dark energy and the cosmology of the future.
P.S. the beginning of the video is quite loud for some reason, so be sure to turn your volume down.