Tell me you've never done any farming without telling me you've never done any farming. There is certainly risk in the business due to market fluctuations, weather, natural disasters, disease, and pests. But the final product is highly deterministic. Almost all genetic variability has been expunged from major food production species in a relentless pursuit of predictable yield. Everything looks and tastes the same. We can debate whether that's a good thing but it is the reality for most farmers.