
Originally Posted by
funestis
As I understand the LHC will simulate time of few milliseconds after Big Bang.
A time before predicted inflation.
Inflation is suggested to be a lot earlier than a few milliseconds after t=0. More like 10-34 seconds. The LHC will be 10 or 15 orders of magnitude short of that.

Originally Posted by
funestis
If there was an inflation then theory predicts an different topology of pre and post inflatory universe.
Diferent topology means different interactions between paricles.
It's questionable whether there were any particles pre-inflation. Just energy.

Originally Posted by
funestis
So how can LHC give a clue about early Universe as the interactions (regardless the energy) will be essentially different than interactions predicted for early (pre inflatory) Universe?
They'll test whatever can be tested. It will take some studying to understand what they're doing.
Everyone is entitled to his own opinion, but not his own facts.