What happens when a human being tries to create a random sequence of ones and zeroes (on and off, yes or no)?
Similarly, what if you wanted to randomly place objects around a room? Would they all be equally spaced? No, because if it’s truly random, each object isn’t thinking about the objects that are already there and trying to find its own spot.
In reality, random distribution of objects will also include (random) clustering. If a person tries to distribute objects on a two-dimensional plane and make them seem random, the lack of clustering is a clue that it was a person trying to be random rather than truly random.
Science fiction writer Karl Schroeder’s intriguing answer to the Fermi Paradox, which basically asks, the universe is so big, so where are all the aliens at?
“If the Fermi Paradox is a profound question, then this answer is equally profound. It amounts to saying that the universe provides us with a picture of the ultimate end-point of technological development. In the Great Silence, we see the future of technology, and it lies in achieving greater and greater efficiencies, until our machines approach the thermodynamic equilibria of their environment, and our economics is replaced by an ecology where nothing is wasted. After all, SETI is essentially a search for technological waste products: waste heat, waste light, waste electromagnetic signals.”