They kept talking about "3 orders of magnitude" (3 OoM) between ELF (1) and neutrinos (100) which confused me. I had to go back and recheck the units before it

They kept talking about "3 orders of magnitude" (3 OoM) between ELF (1) and neutrinos (100) which confused me. I had to go back and recheck the units before it made sense. ELF: 1 bit per minute. neutrinos: 100 bits per second. It would have been substantially better to compare them in the same units by saying 6000 bits per minute. Aside from that though...I went to this article all excited. The title seemed to imply that they really had something. Unfortunately, to make it work they need to: 1) Improve their neutrino detection ability by 6 OoM. 2) Either cover the entire hull of the sub in detectors--tricky, since subs are already covered in acoustic tile and the insides are jammed with stuff, making it hard to retrofit the system in--or use Cerenkov light detection, which requires filtering out light from bioluminesce, moonlight, sunlight, etc. 3) Even if all this happens, the submariners can only receive. So this system needs to be in addition to, not in place of, their existing commo, and they still need to come to the (near) surface to transmit. Still, great concept. As other people have commented, would be great to see it used on land.