I don't claim to be especially "savvy"-- but with more than a third of the market value held "passively" (meaning investors in indexed funds), a lot of people have traded voting with their feet for a sense of security. Thus, there isn't actually a lot of pressure in the stock market reservoir to bubble back up to the Beltway. After reading yesterday's HN topic:
http://www.marketwatch.com/story/us-stock-valuations-havent-...
and the accompanying paper from Grantham, Mayo & van Oterloo:
https://www.gmo.com/docs/default-source/research-and-comment...