What if on both of these planets were civilizations, that are only 1000 or 100 years apart as in technological level?

Hopefully by the time large-scale space travel is possible, the civilizations will be civilized enough to refrain from killing each other.

Well, if we were for example in 2200 year, and they were in 1800's, then it would be interesting. Cant wait for yottascale supercomputers :p

Lol welcome back

gg wp no re

I'm pretty sure everywhere was an incredibly religious place in the 1600s.

I believe certain regions in Europe had the most cathedrals/houses of worship per unit area though. It's amazing how much Europe changed. It all started with the conversations of some intellectuals. Who can imagine what world we're all building together?

Neanderthals and Bottlenose Dolphins?

Actually, you should also include Homo erectus and those hobbit humans we keep on finding all over the place. Toba took out some others, I'm sure. And maybe bonobos? We have yet to prove their sapience, but I feel it will be proven.

What if they weren't in contact, Like the proverbial little green men on mars? Or what if they are out there now encased in electromagnetic fields with Cosmic dust?http://news.nationalgeographic.com/news/2007/09/070917-alien-life_2.html