Can people really become immortals? Has anyone seen a fairy or a ghost in this world?

Yes, I'm not claiming that science is incorrect, but I have a similar experience. And everyone around me has seen dragons, at least my grandfather has ~ ~ I lied to you, you are my grandfather! ! Really, there are incredible things in this world, but you should also believe in science! ! I am now in a state of doubt. It is impossible to believe it all, and those who don't believe it will suffer big losses! ! It's better to believe what it has than what it doesn't have than to fall into it. Let's focus on science, supplemented by these! !