Honestly, this topic/question is done every year and I think people should be more creative.
If you really are interested in finance/ the markets there is far more than just the 2008 stock crash to do an epq on.
Personally, considering "everything", I think a far more interesting and relevant question is are we headed for another stock crash now? You can then compare and go further (might make it easier) by talking about more than just the 2008 stock crash.