My friends and I are having an arguement over this question: "Someone 5 LY away on a planet is getting "poked" by a 5 LY long stick from here on earth" Does it take five years (or more) from the time one end of the stick is pushed until the person right next to the other end is poked by it? Or does it happen in next to no time at all? - I personally believe that it will take alteast five years.. since if the person being poked had a telescope and watched the person push the stick, it would take the light ("information") 5 years to reach him.. and he can't get poked by the stick if it hasn't been pushed? Is that right to say? *Ignoring the fact of obvious problems with the situation, like requiring a massive force to move the stick.