No.619872483
Our earth is only 4 billion years old in a universe that is 14 billion years old. What could a species learn, create, and do that has a 2 or 3 billion year head start on us? what about 10?
No.619893946
they probably have better memes.
assuming the universe wasn't as hostile to life as it really was, they probably reached a major bottleneck in development where there wasn't much more to discover cause speed of causality can't be broken, negative energy can't be figured out, or they deleted themselves by war/pollution