yeah please post soon especially what you mean by knowledge work
http://www.for-your-dream-career.com/The-Best-Recession-Proof-Jobs.html
This link is on recession proof jobs and he takes 3 economics guys and peter schiff is one of them. He gets his list from The Little Book of Bull Moves in Bear Markets by PETER SCHIFF
1. Engineering, because the abandoned U.S. industrial base will need to be re-tooled.
2. Construction, to rebuild the American infrastructure.
3. Agriculture, as we wean ourselves from imported foodstuffs.
4. Merchant marine, to transport goods to foreign markets.
5. Commercial fishing, because demand for fish is increasing in the U.S. even as foreign supply is declining.
6. Energy, because we’ll need to develop alternatives to fossil fuels.
7. Computers and high technology, one field in which the U.S. continues to lead.
8. Entertainment, another industry in which the U.S. should continue to dominate the world market.
9. Automotive repair, small appliance repair, and the like. It’s going to become more costly to replace items, making repair a viable option.
10. Tailoring and textiles, because imported clothes will become scarcer and more expensive.
Schiff quote.
Also I googled and found this:
http://www.ronpaulforums.com/archive/index.php/t-224344.html?
Geophysics does sound cool btw.