Engineering360: "Technology Evolves Hydroponic Gardening"

What is the point of the bouncing picture of the planting shelves? I was having a tough time reading the article without getting seasick.

In conventional farming on most soils, a significant amount of the soluble phosphorous in fertilizer applied to extractive crops leaches through the root zone to be lost forever to plant growth by phosphorous enrichment in the saturated soil mass below the root zone. This means the mining of phosphorous for conventional cropping fertilizer is a one-way low-rate recycle deal that gradually depletes near land surface phosphorous ores.

If we are not to eventually morph back to the phosphorous limiting growth of primordial forests and plains, we must evolve to a cropping agriculture that keeps the root mass of harvested plants in a saturated environment that captures all applied phosphorous for growth of the plants, some portion of which can supplement gross system availability of phosphorous through recycling of harvested plant mass. Otherwise, more energy will be expended with each generation for the extraction of less and less convenient phosphorous ore sources (i. e., shaft mines, drilling, sea water extraction)