Nois's lab was well soundproofed, and aside from the rustling sound of a quill against paper, there were no other sounds.
In such a quiet environment, it was easier for a person to focus.
Colin stood to the left of Nois, carefully reading the manuscript he had picked up.
This was the first sheet from the stack on the far left, and after reviewing it for a moment, he put it back.
Nois had apparently arranged these papers in order, and what Colin had just picked up was a fragment from the middle of a reasoning process, which was difficult to understand without the context of the earlier content.
Colin flipped through the sheets in front of him, and a moment later, he picked up the one from the very middle, which was indeed the beginning part.
Nois paused slightly in his writing, glanced at him, and then continued to concentrate on verifying calculations.