Investor demand for above - average risk / reward opportunities has been
met with new outlets for speculation, the result of which is that new risk capital available for exploration for
supply - starved commodities such as zinc, copper, gold and silver is
dwindling.
But Baker suggested that the world also needs new proteins to
meet new challenges that loom on the human timescale, such as the diseases of old age,
dwindling energy
supplies, and a warming planet.