I thought what Avi had to say about dark matter was interesting. I don't know much about space or the matter that it is filled with, but the concept of keeping something consistent until you know it is changing seemed to make sense from a modeling perspective. It seems that astronomers are not yet sure what dark matter is and how it behaves, but for the sake of simulations of the future, they are making assumptions that it will not do anything drastically different. It was also super fun to hear Avi explain his thoughts that we are not the only form of life that exists and that other species are likely more advanced than we are. He speaks so casually about something so drastic that you can't help but smile. I liked how he kept using similes to put things in perspective such as oumuamua as a new car that he was barely conceivable hundreds of years ago or that there are more planets than grains of sand on the Earth.
I would ask Avi about if we were to come into contact with extraterrestrial life, how should we go about next steps? How would we present ourselves, integrate or remain separate, and reduce conflict? Also I would ask Avi, if he thinks we have been visited or watched by other sources of life. There are many people who believe in Area 51 alien teams and there are interviews with military officers claiming to have seen strange UFOs such as the "tic tac." I would ask what Avi thinks about these instances.