Well if you want to get technical it also involves tons of pumps, solar panels, glass, etc. Obviously they weren't planting seeds in a puddle of seawater. I wa

Well if you want to get technical it also involves tons of pumps, solar panels, glass, etc. Obviously they weren't planting seeds in a puddle of seawater. I was able to figure out it was a hydroponic setup from the headline and that the novel part was that they were powering desalination with solar power, not that they have figured out how to grow plants without any nutrients.