Originally Posted by **drsfinest72**

so lets say you are capable of traveling at the speed of light to another planet. so your goal is to reach a planet 20 light years away.

so in total to go and come back home is 40 light years in total. so i dont know the exact math on how much is 40 light years & how long is it in regular earth year but lets say 200+ years. so if you was 20 years old and you went to the planet and back that means that you would arrive back on earth about 60 something years old. but on earth year it would be 200+ years since you departed.

so you would get back on earth and everybody you knew is dead. what chu think?

No, if you're capable of traveling @ the speed of light...it means you're traveling just as fast as light is.

So if a planet is 20 light years away, it would only take you 20 years to get there because you're traveling at light speed, and another 20 to get back.

So in total, you would have travelled 40 light years but because you're going as fast as light, you would have travelled for only 40 years...

Meaning, when you got back to earth, only 40 years would have passed.

Earth and everyone would be going slow relative to you...so it not necessary that everyone would be dead by the time you got back...they'd all be 40 yearsolder

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