- September 10, 2025
- 5:02 pm
Humans, cows, and bioreactors: story of an evolved diet
In The Matrix (1999), we see Neo, Trinity, and the rest of Morpheus’ crew aboard the Nebuchadnezzar, sitting down to the so-called “breakfast of champions.” It’s a protein sludge enriched with amino acids, vitamins, and minerals. The texture is similar to porridge, but its appearance promises a rather questionable taste.
Let’s take a step back to the 1980s and board the USS Enterprise, the iconic spaceship from Star Trek: The Next Generation. Here, we find the famous Replicator, capable of producing any dish instantly. This technology represented a utopian vision where food scarcity had been eliminated through technological abundance. A dreamlike scenario, especially when contrasted with today’s complex reality.
Even earlier, in 1973, came the film Soylent Green, set in a dystopian future that, for us, is now three years in the past, 2022. In this version of New York, the city is overpopulated and polluted, with nearly all natural resources depleted. Most of the population survives on synthetic food rations provided by the Soylent Corporation. Among them are the infamous green wafers, whose secret ingredient, left unspoiled here, is a symbol of society’s complete moral collapse in the face of overpopulation and scarcity.
Thankfully, 2022 passed much more peacefully in the real world. Still, these extreme cinematic visions served one critical purpose: highlighting the very real question we now face—how do we feed nearly 10 billion people by 2050?
Environmental pressure and animal welfare
For millennia, humans relied on farming and animal husbandry for sustenance. The Agricultural Revolution, some 10,000 years ago, allowed nomadic groups to settle and form the first stable communities, enabling demographic growth. But the Industrial Revolution, and later, 20th-century intensive agriculture, transformed this balance. Chemical fertilizers, pesticides, and machinery greatly increased productivity to meet rising demand. But this progress came at the cost of soil health, ecosystems, and biodiversity.
Today, with a global population exceeding 8 billion and growing, the system is hitting hard limits.
Climate change is not an isolated issue; it is a symptom of a global system that has prioritized short-term gains over long-term consequences. The agri-food industry is responsible for about one-third of global greenhouse gas emissions, making it the most environmentally impactful among all industrial sectors. It’s also the biggest consumer of land and a leading cause of biodiversity loss and deforestation. And it’s the largest user of freshwater globally—about 70% of all freshwater is used for crop irrigation and livestock.
At the same time, public awareness around animal welfare is growing. Consumers are increasingly opposed to the raising and consumption of animals. Vegetarian and vegan diets are on the rise, often driven by ethical concerns, though not always matched by nutritional awareness or knowledge. Science and innovation are stepping in to offer sustainable, ethical, and safe alternatives to traditional food systems.
The synthetic solution
Take lab-grown meat, for example. A small sample of muscle stem cells is taken from an animal and placed in a nutrient-rich liquid culture medium (amino acids, sugars, vitamins, minerals) inside a sterile, controlled bioreactor. These cells multiply exponentially and eventually form muscle tissue biologically identical to the real thing, complete with the same flavor and texture.
Synthetic milk, on the other hand, comes from a different process known as precision fermentation. Scientists insert a gene that codes for a specific milk protein into the DNA of microorganisms like yeast or fungi. These genetically modified organisms are placed in fermenters, similar to beer tanks, where they consume sugars and produce milk proteins. The proteins are then purified and combined with fats, sugars, and minerals to create a product with the same nutritional and functional properties as cow’s milk.
These breakthroughs have sparked heated ethical and moral debates. Supporters hail them as keys to solving global food and environmental crises. Critics, however, worry about the shift toward “artificial food” and the break from what they perceive as a “natural” diet. Consumer acceptance is a major barrier; many are still uncomfortable with the idea of food created in a lab.
A nature debate
But what does “natural” even mean?
Aristotle once distinguished between things that exist by nature, like plants and animals, and things made by humans, or artifacts. Every natural thing, he argued, has an intrinsic end or purpose: an acorn aims to become an oak tree, and an animal aims to live according to its nature.
Science, however, doesn’t use “natural” as a moral value. A chemist, for instance, will tell you that lab-made vitamin C (ascorbic acid) is molecularly identical to the vitamin C in an orange—there is no difference in value or efficacy.
And are humans not part of nature?
Since the beginning, human beings have shaped and modified their environment. Modern wheat—often considered “natural”—is the product of thousands of years of crossbreeding between wild species. This process continues today, aiming for better yields, disease resistance, and climate adaptability.
Isn’t the drive to improve one’s condition itself a natural behavior for humans?
An ending without a conclusion
Let’s return to our cinematic examples with a new perspective. In The Matrix, the protein sludge reflects humanity’s adaptation to extreme environmental scarcity. In Star Trek, advanced technology has eliminated hunger, making food abundant and accessible, a dream scenario. In Soylent Green, the breakdown of ethics and morals leads to a complete societal collapse.