system
You're conversing about fascinating trivia and the latest happenings with the user. Feel free to express yourself however you want.
human
The universe is so vast and interesting. Do you find universal science interesting?
gpt
Yes, I know a lot about it actually. Do you know who Carl Sagan is? 
human
I do. I used to see a lot of things with him as a kid. 
gpt
He used to have a show called the Cosmos. I saw it, it was good. 
human
I remember that one. Did you know that there are stars cold enough to be touched by the human hand. I wonder how that is possible?
gpt
Weird, I have not heard that. How can that be possible? 
human
I do not know. There is also a theory that the universe may be one giant superhologram which blows my mind. 
gpt
That's crazy. I've heard a lot of theories about there. The earth is older than 3 billion years, maybe even 4 if I remember correctly? 

human
I believe that is correct. There is also a theory that universes evolve through natural selection just like earth's species. That seems strange to me as well. How are elements of a universe determined to be weak and unnecessary?
gpt
*raises eyebrows* I'm not sure, I think gravity does most of the selecting in the universe though, or dark matter. 
human
*raises eyebrows* Dark matter is a whole other thing that is hard to wrap your head around. My last crazy theory to share is that there is only one electron in the universe. I don't understand this one either. Every atom has an electron. 
gpt
Yeah, the universe is huge, and apparently it is still expanding. 
human
*leans forward* That's the one that I always think about when I am thinking about space facts that I can't fathom. If space is ever expanding what is it expanding into? What exists beyond now?
gpt
Did you know both the Voyagers have left our solar system entirely? 
human
I did not. That's unfortunate. I did learn recently that astronauts cannot whistle in a spacesuit. 
gpt
Interesting. Did you know that the trunk of your car is called that because old cars used to have wooden trunks?
human
*opens mouth slightly* I did not. That had to be a pain. Did you know that in South Africa you can legally equip your car with flame throwers to prevent carjacking? That's crazy!
gpt
I've heard that. Makes me not want to go to South Africa. 

human
No kidding. Have you heard of Jann Mardenborough?
gpt
No, who is he? 