What answer can I give someone who asked “Do you ever imagine what our life would look like together in the future?” Can my response be sarcastic? This person in question, you barely know him and the chances of you two being together is kinda impossible

Certainly! If you want to respond with a hint of sarcasm while keeping it light, you could say something like: "Of course! I just picture us with matching cat sweaters and arguing over whose turn it is to do the dishes. Sounds like a blockbuster romance, right?" This keeps the tone playful while subtly conveying your uncertainty about the possibility of a future together.