It was in Crash Course Big History. It is at 3 minute and 16 second. Here is the context:
When the universe was still very, very small at the quantum scale, tiny fluctuations were popping in and out of existence. These tiny blips of energy usually don't affect the physics of the larger world. But, during inflation, they suddenly were clear, when the universe became big, causing slight inequalities in matter and energy.
I cannot get how tiny blips can become clear, and what it means there. Could you please rephrase the sentence for me?