This from Matt Young on pandasthumb:
Does gold have a purpose? asks an unnamed author in Evolution News & Science Today. The author goes on to observe that there is more gold on earth than astrophysicists can account for and also that gold has risen to the surface of the earth faster than might be expected. They go on to note the “availability of many essential elements at the surface of the earth …” and also discuss the use of gold in medicine. They are somewhat breathless at the discovery that the body can metabolize gold:
Gold nanoparticles, which are supposed to be stable in biological environments, can be degraded inside cells, [boldface in original]
even though, as they note, gold salts have been used for decades in the treatment of rheumatoid arthritis.
At any rate, the article stresses the “mystery of biological gold” and claims several hints why gold may have a purpose: its abundance and seemingly unlikely transport to the surface of the earth, the ability of cells to “metabolize” [sic] gold, the fact that gold persists in the body, and the usefulness of gold for therapeutics. The conclusion of the article is Read the rest of this entry