Some argue that food production will be the thing -
that ultimately kills all of humanity.
Starving people will disregard logic and what is best for THEM.
Critical factors that impact food production include:
biosphere limits
climate
human population size
values
wastefulness
process efficiency
workforce availability
reward system
equality
food quality
Like with everything else -
re any intelligence based civilization -
the important info surrounding the topic -
is what's most important.
Our planet CANNOT support an ever-increasing human population size -
as is reality today.
[maybe more coming]