2 ms·

I would suggest this too https://www.youtube.com/watch?v=F-QA2rkpBSY https://www.youtube.com/watch?v=F-QA2rkpBSY

• ehsanu1 12y ago
  While there are many who people do not understand exponential growth, such as that video's target audience, I'm pretty sure that none of them are population projectionists.
  • rasz_pl 12y ago
    Its not that they dont understand, they dont even think about it. Even Hans Rosling from the clip above spends whole 3 seconds on the subject of energy needed to support 20 Billion people living at the same comfortable level as top billion people today in developed countries. I seem to remember some funny back of envelope calculations that put energy needs of earth in 100 years (assuming current growth) at _full output_ of our sun.