OMG, it's the 21st Century version of the 70s panaceas: wind power is free: solar power is free; wave and tide power are free.
Now it's, The Seaweed that Saved the Planet!
There have to be at least 5 or 10 pretexts the NIMOs (Not In My Ocean!) could use to shut this down. Don't harvest the oceans! Don't disrupt the food chain of the seas! Seaweed farms will unleash invasive species!
Ignoring those stupidities, does OS have a clue how massive the livestock industry is worldwide? The massive logistic infrastructure he imagines could be poofed into existence to be the miracle-cure for his Glo-Bull Worming bogeyman?
Is OS the DU-member who claims he has progressive dementia? Or is this "normal" DU-Dementia?
Creationist stereotyped joke: If God meant for cows to eat seaweed He'd have given them fins and gills!
Mmmmm ... my coffee's extra good this AM!