The elite could have pulled the plug at any time or they could have chosen to keep the artificial bubble going. They always intended to pull the plug at one point, when they were ready.
The derivatives and CDS instruments etc. were always based on thin air. Choosing to not bail out Lehmans is when they set the whole collapse into motion.
The reason is tied up with their largest scam - global warming, climate catastrophe and saving of the planet. It's tied up with their "environmentally friendly" food of ants. locusts and beetles.
Once upon a time. the elite said "let them eat cake". In the future, they will say "let them eat ants".
The reason they are doing it is "sustainability". They tell us that the planet is not sustainable, our energy sources are not sustainable, our pensions are not sustainable, our lifestyles are not sustainable and our libraries are not sustainable. Of course, it is all a lie.
The real thing behind it all is population. They don't want people to do well and prosper and for the population to increase. That will mean that there are less resources left for them. That's why they have educated people about the depletion of resources and told them that human behaviour has led the planet over the "tipping point".
They are going to implement the same austerity programmes worldwide. They are going to hold people back, slow them down, increase their taxes, reduce their consumption, reduce their use of power in order to make them more powerless.
Newsnight ran a theme of the earth's population last week. Every day they warned us how it was growing and at the end they hit us with the whammy about how good it would be if we started eating ants and locusts.
It's about austerity to hold people back, cut their services, cut their aspirations, cut their access to free education in an attempt to stop their progress. They call it being "progressive".