Much better explanation than my off the cuff attempt, great added detail.
Salt brine is highly corrosive to anything in contact with it so it is difficult to move, and in high concentrations wreaks absolute havoc in surrounding ecosystems. There’s a reason the phrase ‘salting the earth’ doesn’t have a good connotation. Desalination on a small scale might not seem like an issue but when dealing with the waste at scale becomes a bigger issue than even the energy cost to perform.
Real gameboy, but with an IPS screen mod, shell replacement too as the IPS screens are a little larger than the original requiring some cutting if you don’t. I did the same to my OG 1998 atomic purple GBC.
One part oxygen, two parts hydrogen and squeeze.