> What is it satirizing?
I think it's (partly) satirizing how we feel about ourselves as the apex beings, and as explorers of the cosmos and colonizers. What if we are actually quite subpar, and the actual apex beings in the universe find us so unlikely and disgusting that they prefer to pretend they are not there, thus giving an answer to Fermi's Paradox? They don't want to conquer us, they don't want to have anything to do with us!
But of course, it's also satirizing this alien-as-a-bug idea, so common of early scifi, that the alien is a disgusting mess of antennae or simly appendages. What if we were disgusting to enlightened aliens?
What we can absolutely be sure of is that Bisson wasn't making fun of meat or the human brain, the thought that apparently irked the topmost commenter.
I thought it was satirising faux-intellectual SF short stories that try to seem deeper than they are. If it’s just an actual faux-intellectual SF short story, that’s much less interesting.
On this planet, we’ve found that basically anything can be used to perform computation, electronics (semiconductors, vacuum tubes), mechanics (linkages, gears, cams, steel balls) , pneumatics, photonics, electromechanics, electrochemistry, optoelectronics, chemistry, phonons, hydraulics, even collectible card games. Donald Trump has said many dumb things, but he was right when he said “everything is computer”.
And almost anything has been used to transfer information. Light (fire, smoke, electricity, heated wires, coloured flags, mirrors, lasers, bioluminescence, LEDs, discharge tubes, electric arcs), sound (vibrating strings, membranes, tubes of air in hundreds of configurations, explosives, blunt objects), chemistry, electricity, electromagnetic radiation, waving body parts around, burning pieces of dead tree to make coloured marks on squished pieces of dead tree, magnetism, scratching into rocks, circles of aluminium with tiny holes in them embedded in plastic, transistors, circles of vinyl with wavy grooves cut in them, pieces of paper with tiny holes punched in them, rockets, flares.
So the notion that any advanced spacefaring civilisation would be astonished by any form of creature or communication method given how much variety there is on this one planet is hard to entertain, even as satire.