How overpopulated is the planet, really?

[NYC_SKP]

30. So, even the Georgia Guidestones figure of "500,000,000 in perpetual balance with nature", is high.

I like your logic and 7 BILLION is definitely not gonna work!

50 million is where we were in 1,000 BC; 500 million the world population circa 1,500 AC. http://www.vaughns-1-pagers.com/history/world-population-growth.htm

I have to think that the magic number is somewhere in between, but so much depends on the terms of the populations and technologies employed.

Inscriptions

A message consisting of a set of ten guidelines or principles is engraved on the Georgia Guidestones in eight different languages, one language on each face of the four large upright stones. Moving clockwise around the structure from due north, these languages are: English, Spanish, Swahili, Hindi, Hebrew, Arabic, Chinese and Russian.

Maintain humanity under 500,000,000 in perpetual balance with nature.
Guide reproduction wisely — improving fitness and diversity.
Unite humanity with a living new language.
Rule passion — faith — tradition — and all things with tempered reason.
Protect people and nations with fair laws and just courts.
Let all nations rule internally resolving external disputes in a world court.
Avoid petty laws and useless officials.
Balance personal rights with social duties.
Prize truth — beauty — love — seeking harmony with the infinite.
Be not a cancer on the earth — Leave room for nature — Leave room for nature.

http://en.wikipedia.org/wiki/Georgia_Guidestones

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