@xj9 It's not really about spirits, but about a selective definition of "natural"
Everybody is eating these today even though the radiation-induced mutations were completely random in their effects and might have modified much more genes than just those intended.
Now, when we came up with a very precise surgical techniques like CRISPR that are safer than anything known before a bunch of undereducated activists or scientific crooks like Seralini are fighting them as "unnatural"...
"During the past seventy years, mutation breeding led to more than 2250 plant varieties (Maluszynski et al. [4]; Ahloowalia et al. [5]). 70% of these varieties were released as directly induced mutants, and the other 30% from crosses with induced mutants. The use of chemical treatments was relatively infrequent, but gamma rays were frequently used (64%), followed by X-rays (22%) (Ahloowalia et al. [5])." https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2218926/
> humans actually were doing efficient agriculture for centuries
It wasn't really too efficient if in 19th century people were still dying of hunger due to poor harvest or pest.
Part of the Green Revolution of 20th century was creation of high-yield crops, which allowed to increase yield from the same amount of arable ground tens of times.
It's not efficient agriculture either if people are getting blind in Asia due to vit A deficiency...
Average gardeners won't feed a city. They won't even feed their own family unless the whole family works in the field for most of the year, leaving no time for creative jobs or education.
Not surprisingly, this is precisely how people lived in pre-industrial era with life expectancy of some 30 years.