hypertruth

Random examples: People who make and fit horse shoes, chimney sweeps, blood-letting 'doctors' etc. (ok these may not be lucrative).

Also, what jobs or careers today will be redundant or non-existent in 50, 100, 200 years time? Maybe investment bankers, careers in the oil industry, or even part of the medical fraternity in the more old-school areas.

I was thinking recently about properly scaling down real world objects into a smaller version. Take a 747: If you accurately scaled it down to the size of a shoe, how thin would the metal be? How easy would it be to squash. How much would it weigh? Put another way, if I was a giant and a 747 was the size of my shoe, would it still be resilient and heavy in my hand, or would i be able to crush it like a soda can?

e.g: The Coca Cola recipe