[danielweber]

Does everyone come up with this idea independently, or is someone suggesting it? It's a very common retort to speed-of-light communications, but someone told me about it before I thought of it.

Anyway, your idea wouldn't work. If you press on one end of the stick, it would issue a pressure wave along the length of the stick near the speed of light (depending on its material), so you haven't gained anything.

[MrBra]

No I am guilty of having thought about it myself :) But I would like to know more about these kind of anti-common sense examples regarding this subject. Do you have a website or some search keyword to suggest? Thanks