PE ratios don't support corporate stock prices increasing, what is causing this the stock market bubble ?

[Home-School-produces-winners]

@ who WAS #1? ~ Your link isn't the right one.
@ Pluto ~ I have a problem with your response. Bubbles have one thing in common, an influx of new investment capital. Retirement funds are already heavily invested in the market. In order to create a bubble, they would have to been winners in the market and investing that new money.
@ Dallas ~ Could you explain why QE fiat capital is causing this bubble?
@ heretic ~ Could you explain how a drop in bond interest rates could cause a market bubble?
@ marvin, ~ Some of that is what happens during a bust cycle, I hardly think those things cause a bubble.
@ Phillip ~ QE3 to the tune of $85 billion in monthly bond purchases, is certainly artificially inflating stock prices. However, the frog-skin money is going to banks in the form of bond purchases, not to energy producers and farm moguls. Bond interest rates are very low. The Bond market obviously has a dynamic influence on stock prices.