Well, a stitch in time usually does save nine or so.

I tell you what, I'm gonna stock up on "tats."

Yeah, it ain't a proverb. KissMass.

Also true: Measure Twice, Cut Once.

Make sure the kids stay in/
Cos if you wanna be immortal you gotta have something to trade in...

Some things are better left unsaid/
Like a pound of protection beats an ounce of lead.
Scraping Foetus Off The Wheel

Red sky in the morning/
Four minute warning.
Killing Joke

Then wishes would be horses and we would all be eating steak?

lol, ColdChef!

An apple a day keeps the doctor away. If true, Everyone would be speaking Chinese.

The price of apples would be above diamonds, apple orchards would be patrolled by heavily armored government troops, and apple seeds would be illegal. Anyone caught with an apple tree in their back yard would be subject to 30 years in prison. The bloody black market apple trade would flourish and entire minor countries would be turned into de facto apple farms with the entire population pressed into service as farm workers, all of whom would injected with a sort of "anabuse" for pectin so they would not be tempted to consume even a single precious apple.

In apple-producing lands, all but the super-wealthy would be forced to live in postage stamp-sized flats in skyscraping habitat towers, since land would be far too valuable to use for anything but apple production.

He who controls the seed controls the universe, so with 41% of the world's apple production, China would be by far the most powerful nation on earth, followed by United States, Turkey, France, Poland, Italy, the Russian Federation, Germany, Argentina, Japan, and Chile. Countries too warm or cold for apple production would be forced into service as vassal states providing lesser services such as technology and manufacturing, entirely reliant on the good will of the Apple Super Powers so that their people would not sicken and die.

Longer lives would mean a population crisis, but The Great Apple wars fought over disputed apple rich territories would offset this. Any weapons harming the growing environment would be internationally outlawed, though, so military scientists would be competing with each other to produce weapons that turn human combatants into instant fertilizer, until, in the end, if you were lucky enough to have apples to eat... you would really be eating PEOPLE.

Or else, you know, everyone would just eat apples and not get sick. But I think it would be the first scenario.

Man. I want some numbers now on annual per-acre apple production rates. We could model maximum sustainable earth population for various land-usage ratios! To say nothing of terraforming the moon.

:)