If I am correct, information cannot travel faster than the speed of light? So, lets say a rod, longer than the distance light can travel in a second was constructed in space. It is rigid and firm, and not bendable. At one end, is a button, and when the rod is tilted, it presses this button. If I then tilt the rod from the other end, thereby pressing the switch at the other end instantaneously, has information traveled faster than light? Is this a valid argument? Like, are there effects which would prevent the rod from being completely rigid at such massive lengths?