９６ Communication with the alien【Exploring intelligence】Dialogue with the Universe
９６―１ Technology level 
Level １ To capture the signal emitted of the alien advanced than humanity.
Level ２ We also emit signals, and communicate with the aliens.
※Symmetrical region：Including a parallel universe.
※Communication with parallel universe is assumed to use gravitational wave.
In February 2016, the Advanced LIGO team announced that they had detected gravitational waves from a pair of black holes merging. 
９６−２ Communications content: What should tell?
○Important is to transmit the idea.
○The idea to be transmitted
１ Communication technology
２ Achievements of mathematics and physics
３ Cosmology and Intelligence Theory
1. Wikipedia：Search for Extra-Terrestrial Intelligence (SETI)
2. Wikipedia：Gravitational wave