It sounds exciting to watch. What suggests that it would be more efficient than other methods? I guess most forms of "get some energy into water so that some o

It sounds exciting to watch. What suggests that it would be more efficient than other methods? I guess most forms of "get some energy into water so that some of it evaporates, then condense it" will produce desalinated water, regardless of how simple or complicated they are. Or most forms of "make some ordinary air colder, so it can hold less water". But it's hard to form an intuition for how much water you get out based on how much energy you put in.