What farming practices would allow the Earth to support a population as high as 200 billion

Welcome to the year 2170, the predictions of our grandparents were so wrong: The human population didn't cap at 20 billion, it went far past that. The global population is now roughly 200 billion.

What kind of farming practices of food creation would need to be employed to feed a population this massive? By farming practices I mean literally any sort of food creation method that can be scaled to an industrial level. E.g.: vertical farming, cultured meat, etc.

The Earth is under an unitary government so you'd have much more infrastructure than there currently is.

Big corporations are still around and I assume will probably be vital to feeding the population more than ever.

Let's not bother with the "whys" when it comes to the population. That will be a later question.

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What farming practices would allow the Earth to support a population as high as 200 billion

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