if you could find the answer to one scientific question what would it be and why

Question: if you could find the answer to one scientific question what would it be and why
- Keywords:
  answer,
  quirky,
  research
Asked by Garmaddon1 to Alex, Ali, Kerry, Philip, Theo on 13 Nov 2014. This question was also asked by Keanu, ScienceGuy.
- Alex Pool answered on 13 Nov 2014:
  
  I’d love to understand why some cancers are so much harder to treat than others. Why a drug will work to stop one cancer but have no effect on another – that’s fascinating and I’d love to understand that.
- Philip Ratcliffe answered on 14 Nov 2014:
  
  What was going on just before the Big Bang – nobody has even the vaguest idea. Knowing that would (presumably) open up a whole new way of looking at the universe and physics.

Question: if you could find the answer to one scientific question what would it be and why