Both Orlov's presentation to the Long Now Society on Valentine's Day, 2009 and the long comment from Mark Jones are must reads.  The quote from Mark Jones may well come from Sheila Newman, (Ed.) The Final Energy Crisis, Second Edition, Pluto, UK 2008.  The RIP on the quote would indicate he is deceased.  There seems to have been a lot of controversy about his predictions around 2004 and many appear to have wanted him shouted down.  Anyone know more?
 

"It is not necessary to have hope in order to persevere."