Raj: Okay, so we know that previous attempts to send a message into space, like the Golden Record on Voyager, were heavily criticized.
Leonard: Well, aliens could only play the Golden Record if they figured out how to build a record player.
Raj: Eh. Although, to be fair, I watched E.T. build a telephone out of a Speak & Spell and an umbrella. Dude was like a little brown MacGyver.