Wow, her comes another brain teaser for meditation. Evolution in cosmic scale, watch the timeline.
(Original video, Soundtrack: Bolero, Zappa style)
Wikipedia says: «In 2012, researchers came to conclusion that it is a definite hit after using the Hubble Space Telescope between 2002 and 2010 to painstakingly track the motion of Andromeda. Such collisions are relatively common. Andromeda, for example, is believed to have collided with at least one other galaxy in the past, and several dwarf galaxies such as SagDEG are currently colliding with the Milky Way and being merged into it.»
This is the reason I want mankind to survive: In 3.75 billion years I want to be reborn to meditate under the nightsky, as it is shown in the third picture below. If you don’t let me do that, I will hate you. And I will appear in your every nights nightmare and badge you like you can’t imagine! Seriously! You don’t want to risk that! Let me have a nice body in the far future – so take care of our environment and your genes. :rant:
For the nightsky in the fifth pic we will need to emigrate on another planet, cause sweet home Alabama is gonna be burned by the sun in 5 billion years. Just imagine where mankind will have evolved: That is more than the time live is old on earth now! I don’t mind short legs and green skin as long I still gonna be having eyes and a back to lie on the grass. 
If you’d like a lighter meditation on the topic of evolution, have a look here: Experience the Scale of the Universe with all senses