Why should you read this: to find out the world will need to address the issue of animal farming.
If 3D printers are the early ancestors of Star Trek’s “replicator”, using them to somehow produce food is likely to be one humanity’s objectives. After all, that is mainly what the “replicator” is used for on the Enterprise. How that will happen is still unclear: We already have machines that can assemble edible substances such as chocolate, sugar and several kinds of pastes, however the final objective would be to use them not just to prepare food, but to make complex foods, such as meat, as well. If not from molecules and atoms, then, at least, from lab grown cells.
(…weiter auf all3dp.com)