There is a funny saying goes that when you are looking at a hole, the hole is also looking at you. So, if aliens do exist, whether they are also looking for us? and how they can connect with us? We have got used to realize the world with five senses, smell, watch, hear, taste and feel. We didn't believe other things existed without feeling via the five sences, but until the technology developed at a high level. For example, the signal sends or receives through our phone, but we can feel it. In that case, do you still believe that the signal doesn't exist? We often mention a special sence called the Sixth Sence, but we can't prove its existence with current technology. Will you still say that it doesn't exist? So, if we use the current technology to look for alliens, will we find them? Maybe you will feel more upset about whether alliens exist or not. My advice is that follow your heart and feeling. Don't try to prove it. You are youeself, alliens are themselves, they can live in your mind. If you meet them in person one day, wili you be excited or scared? So, I think that the topic doesn't exist. The simlar questions are countless, such as what are the things outside the universe? Where do people go after dying? Why don't just enjoy your daily life without thinking about something which Einstein wouldn't think about?