I know this comment is totally innocent but it does kind of bum me out to be at a point in time where instead of addressing our impact on the environment directly, we're trying to make computers that can talk to dolphins so we can tell them to stay out of the way lol
You don't tend to hear about it and not that there isn't still progress to be made, but there has been tonnes of progress on fisheries interactions with protected bycatch species. For ex the infamous dolphin problem in the eastern tropical Pacific purse seine tuna fishery is down 99.8% from its peak to the point populations are recovering, despite the fishery intentionally setting on dolphin schools to catch > 150,000 t of yellowfin tuna per year.
Pelagic gillnets are probably the gear that still have the most issues with dolphin bycatch, and acoustic pingers that play a loud ultrasonic tone when they detect an echolocation click are already used to reduce interactions in some fisheries.
One of the things I think is amazing is that people will say “here’s a way to make the world better” and others will react with “it’s so sad that you propose making the world better instead of making it perfect”. I think it’s great.