Author and Wharton Professor Jeremy Siegel says the current low valuations in the market make it unlikely that we’ll see another decade of meager returns for stocks, like we did after the tech bubble burst in 2000.  “It’s certainly scary in the short run, but I think there are really irresistible values here in the long run,” Siegel tells CNBC in discussing the recent market turmoil. “If you can just grit your teeth and say ‘I’m going to get through this volatility’, I think you’re really going to be rewarded in the long run.” Siegel says he thinks the bond market is “grossly overvalued”, and he discusses why he thinks the current global economic problems aren’t a repeat of the 2008 crisis.