I'd love to vote for a bigger c**k, but I'm going to go with a World Wide epidemic that renders 95% of the Worlds population infertile
I think it would be really interesting to see how humanity would respond if most of us could not procreate.
How would our attitudes change?
Would we become less greedy?
Would we start loving our fellow citizens - like all of them, safe in the knowledge we can't get them up duff?
Would scientists strive to maintain a level of diversity among the stock still able to breed?
Would religious intolerance go into overdrive?
What would governments do, knowing that there are going to be fewer people in the future?
What would the Worlds economies do?
What would we do with the Worlds nuclear power stations?
I reckon this could be an amazing science fiction television series by the way
I reckon in that situation human society would completely break down, given we would be looking down the barrel of the extinction of the species, and if things went really pair shaped life in its entirety on this planet.
With the global population about to drop by 6 billion, most of what we take for granted would fall over pretty quickly. The internet and most forms of electronic communication would be f**ked inside of 50-100 years max, as would electrical grids, water and sewage infrastructure, oil refinery, etc. These would then in turn take out food production, modern medicine, education, entertainment, and it would be back to the pre-industrial revolution days in a hurry.
Essentially we'd regress back to the 1700s, but with much more horrendous weaponry in which to fight over the remaining resources, knowledge of how things used to be, and a loss of the basic skills most pre-industrial people had (farming and trades).