Loop quantum gravity clearly offers more
testable predictions than string theory.
The Big Bang Theory Season 2, Episode 2
Not till you tell me about
your latest paper on quantum LOOP theory.
The Big Bang Theory Season 10, Episode 24
What about LOOP quantum gravity?
The Big Bang Theory Season 7, Episode 20
...who believes LOOP quantum gravity
better unites quantum mechanics...
The Big Bang Theory Season 2, Episode 2
A LOOP counter and an escape
to the least objectionable activity.
The Big Bang Theory Season 2, Episode 13