People have been predicting an apocalypse in the short term for a long time now. Remember "The Shape of Things To Come", and "The Limits To Growth"?
"there will still be a desperate land shortage before the year 2000 if per capital and requirements and population growth rates remain as they are today." pg 60
It's 2018. Where's the desperate shortage? Also on HN today is talk about the new "vertical farms" that use far less resources than flat farms.
For example, an amoeba dividing at its maximum rate will form a ball larger than the earth in 24 hours.