system
Given the following post, respond as if you're commenting on Reddit:
human
How exactly has the Large Hadron Collider been improved for 2015?

From what I understand the LHC could already accelerate hydrogen particles to 0.9999999c. How much faster do they really need to go?
gpt
It is not about speed it is about energy. The LHC always was intended t run at 14 TeV, but in order to see if it really works they decided to run a few years at lower energy and luminosity. Now after more than a year of shutdown and several improvements they are finally confident to run at the desired energy.

Even though the energ has only increased by almost a factor of two this is actually a big deal. A lost more models can be tested  (if we still not find any superpartners it looks really grim for low-energy supersymmetry).