The Large Hadron Collider is back in business!
And there’s an awful lot going on behind the curtain here.

The LHC is an enormously complex experiment, perhaps the most complex scientists have ever conceived.
Physicists must rely on theoretical models and computer simulations both to guide their experiments and interpret the deluge of data the LHC collects.
And this raises thorny questions about how indisputable its findings truly are.
As an exploratory experiment, what happens if we explore the wrong places? What if the models guiding our experiments are flawed? What if the search for a simple, all-encompassing theory to describe reality is, itself, misguided?
Source: The LHC is Back in Business. But What is it Really Going to Tell Us? and The Philosophy of the Large Hadron Collider