Great episode S51E051e05. (on IMDB it is listed as S51E08) It's all about A.I. The great, the bad, and the outright terrifying.
My personal opinion, humanity will use its incredible potential to do good, to destroy ourselves...
It's incredible that a movie "War Games" from 1983 can become our reality now. Putin will ask his A.I. "How to win a war with the USA", and the USA will ask theirs A.I. "How to win a war with Russia". Global annihilation. IT REALLY COULD HAPPEN!
Another captivating episode, "S51E04 - hunt for the oldest DNA". DNA is just like a computer code. It's a set of instructions to grow a biological organism. So I'm positive, that one day in the future, you'll be able to scan a DNA sample in the computer, and it will create EXACTLY what this sample was designed to become, and look like. And it won't have to even actually grow the entity itself. It'll be able to create it virtually, without the inherent risks such as ancient pathogens. But just think about the possibilities. We could design new species, to seed life on the uninhabited, inhospitable for us planets. We would quite literally become Gods, (or as I am inclined to believe) ancient alien species, who may have seeded the life on Earth. I mean... it's mind-blowing. Isn't it?