A thought for the day from Glenn Reynolds at MSNBC: "Quacks and snake-oil salesmen have been peddling longevity and rejuvenation treatments forever, along with baldness cures and treatments for impotence. Of course, the latter two are real, now." Progress will happen on the longevity and rejuvenation front too - we can already see the signs of regenerative and real anti-aging medicine in the near future. Another good quote: "Extension of the average American lifespan by over two decades in the 20th Century coincided with one of the most dynamic periods in human history. I speculate that extending lifespans to, say, 140, might do the same."