As the population continues to increase, we will need more and more food to be able to feed everyone.

Methods like this are extremely valuable, because as you said in the article, the amount of productivity increase exponentially while using the same amount of space.

This method is a winner for me, even if food might not be as nutritious at the beginning. What matters is to have enough food for everyone, and eventually the amount of nutrients will be the same.

Cheers