time machine

I always have some strange thoughts. I dream that some day, maybe 30 years later, I can make a time machine and send me back to the world now. (So I must be 48 by that time) Of course the me who am 48 years old will try to find the me who am 18 years old. Then what I (48) will say to myself (18). I wonder. Maybe I (48) will find out that I (18) am just mugging for the coming tests, is playing violin with the unbearable sound, is desperately doing some research that I have no idea with, or playing some computer games that has no further significance other than playing itself. Then what I (48) will say to myself (18). I wonder. Maybe I (48) shall see that all the things I (18) am doing now is utterly unimportant. I (18) am just wasting my time, maybe I (18) can doing something that is more meaningful for my future. But shall I (48) tell all these things to myself (18)? Maybe not. I shall just smile and go away. Do not disturb him. He is enjoying his life.