First please forgive me, if my question is in the wrong board. Dear members. I'm only Junior High School graduated. So I knew nothing about physics /science/math, etc. My friend "teach" me that if a person mr. X move at the speed of light, then time not exist anymore for mr.X or time freeze. So mr.X stay young. As I realized he knows that because he read/heard from someone, I feel useless to ask what I'd like to know. So I can't help to become a member here just to ask my question : The scientist make an experiment, they have a speed-Of-Light rocket which computerized that regardless time happen during the journey the rocket will always sync the clock with the earthly clock. Scientist don;t care what happen to the time duration during the rocket journey also don;t care much how long the distance the rocket feel, what destination the rocket go... they just care that the rocket must calculate - by the time it reach 4 earth-years calculation, the rocket-computer "know" that rocket must already landed back on earth. The rocket carry a one-hour year old baby and a lady who in 1 minute deliver a baby. So the rocket "go somewhere" with the speed of light... and the rocket come back 4 earth-years later to the earth. will the baby still a baby ? (1 hour age) Will the lady still had her baby inside her womb ? (as my friend told me time freeze at speed of light). It's really hard for me to think like the question. IMHO, people/baby grow and woman deliver a baby is a nature regardless a time/ a speed. I'm sorry if it;s a wrong question or ridicolous question and please forgive me my bad english. Any kind of respond will be greatly appreciated, and I hope it's not involving physic/math/science - but a light explanation that people like me can understand although a little ... :) Thank you in advanced. regards.