Popularity of using "in five years" to predict near-magic technology

sebb says: "Why is this story not the biggest story in the media right now??!!?? (Cure for Cancer Within Five Years) Surely the best news of the millenium so far. A cure for cancer! all cancer! Posted as a side article on bbc news april 8th."

Whenever I read an article about a cure for peanut allergies (my daughter has a life threatening nut allergy), the articles always quote some researcher as saying it'll happen "in five years."

Curious about the popularity of "in five years," I googled the following terms:

"in two years" — 1,320,000 results

"in five years" — 1,420,000

"in ten years" — 584,000

"in fifteen years" — 59,000

"in twenty years" — 176,000

"in fifty years" — 74,300

"in a hundred years" — 77,500

"in a thousand years" — 56,300

"in ten thousand years" — 3,370 (first hit is Cory!)

"in a hundred thousand years" — 828

"in a million years" — 202,000

"in a billion years" — 5,410

"in a trillion years" — 933

"in a quadrillion years" — 51

"in a googol years" — 38

"in a googolplex years" — 2

"never" — 296,000,000

"Never" wins by a huge margin, but "in five years" comes in second.

UPDATE: "in one year" barely beats "in five years" — 1,490,000

Reader comment: Mark says: "I am a diabetic and have been for about 15 years. You get about one or two
miracle / fantastic solutions promised for some facet of diabetes every
year. Pancreatic implants, eyeball blood-glucose monitoring, nano-whatnot. I
have also noticed that they are always promised in 4 yearly timeframes.
Enquiring to a scientist friend of mine, he pointed out that this is the
life-cycle of a research grant. At the end of which, all bets are off."