The whole question is whether, when you include the energy inputs such a system require, it's more efficient. The jury's still out. Many people don't consider f

The whole question is whether, when you include the energy inputs such a system require, it's more efficient. The jury's still out. Many people don't consider food grown in substrates with 'artificial' (concentrated) nutrients to not be 'organic'. I don't personally care about labels so much, but my point is that it's not clear at this point which direction is a) viable, in the long term and b) the 'best' (or rather, we don't even know what our optimum function looks like, let alone that we know what system is best)