[Music] [Applause] crystals. Ladies and gentlemen, what is so special about crystals that I want to give a TED talk today about them. Each talk, each presentation should contain a message.And my message is no computer would work without crystals. No mobile phone, no navigation system, and no military drone. There would be no internet, no artificial intelligence, and no social media.special crystal systems, artificial crystal systems form the material basis for all these achievements of our modern world. And ...