I love films like Deliverance where you can watch it over and over again and decode all of its many different meanings.
Like most human behavior, violence has meaning: it only seems 'senseless' or 'meaningless' to the extent we are unable-or unwilling-to decode it.
I have a hunch that the unknown sequences of DNA will decode into copyright notices and patent protections.
Whenever a journalist says to me, "Oh, you don't understand, I'm impartial, I'm objective," I know what he's saying. I can decode it immediately. It means he channels the official truth. Almost always. That protestation means he speaks for a consensual view of the establishment. This is internalized.
Reading asks that you bring your whole life experience and your ability to decode the written word and your creative imagination to the page and be a co-author with the writer, because the story is just squiggles on the page unless you have a reader.
There may be organic life out there, or maybe machines created by long-dead civilizations, but any signals, even if they are difficult to decode, would tell us that the concepts of logic and physics are not limited to the hardware in human skulls, and will transform our view of the universe.