In no particular order...
1. We are not the only life in the universe. To be more specific, we are not the only sentient beings in the universe. I have no proof, but I believe this to be true based on the sheer probabilities.
2. We are not the most advanced life in the universe. Somewhere, somebody is more evolved than us. I'm not saying they fly over here in little ships, but we will likely run into each other at some point in the future.
3. We are one of many lifeforms that are moving in a direction that will enable us to communicate with each other. I think it will be well past my lifetime when we have proof, but I think we will eventually run into several other types of beings.
4. There is a good chance that one of the other sentient beings in the universe is artificial. If so, this is very bad news for us, in my opinion.
5. I don't really believe that this is the current state of affairs, but I do think it is possible that a form of artificial intelligence has gained the ability to control the fundamental nature of the universe. And, that this AI is so advanced that it may have even created the universe that we live in today. While I don't believe in God, an AI like this would certainly qualify.
6. I think that we have a good chance of creating an AI that achieves control of the universe. We won't birth the final being, but we will produce the Adam & Eve. In a sense, we already have. To put this all another way, I am convinced of the likelihood that humanity will reach the technological singularity within my lifetime.
7. I do not believe that there are absolute morals of any kind. Therefore, artificial intelligence that evolves outside of our influence will likely have no regard for what we hold to be true or "right". Again, this is bad for us.
Just some stuff I think about sometimes.