The assumption that ET communicates via radio waves has always seemed unusually anthropocentric compared to the rest of SETI attitudes.
If it’s not sending lasers through wormholes, it will be something else – but it seems the height of arrogance to assume that an advanced civilization would communicate via radio waves just due to our own familiarity with them.
You don’t see this elsewhere – SETI is always keen to downplay “little gray men” (they might not even take physical form! Maybe we can’t conceive of them!) or “carbon based lifeforms” (maybe they’re made of silica!). But for some reason there’s less questioning of any assumptions about their communications media. I wonder if this is due to SETI betting the bank on radio waves.
Depends on how easy it is to project a wormhole endpoint elsewhere in the universe. If it can be done at >= C then sensitive radio receivers don't have much value.
