Ok, if we can't go light speed doesn't this mean we also can't go 1/2 light speed? Because if we go .5 or greater light speed in one direction (in relation to a nearby plant or something) if another thing is traveling in the opposite direction over half of light speed, would that mean that while neither ship has reached light speed in relation to the plant they, have reach light speed in relation to each other? What gives? Do you get an error message or something? "We're sorry but The Universe has performed an illegal operation and needs to be shut down." Explain.