Project Solve for Me: The Never-ending Inquiry Initiative

What is it even, indeed? We can't quite put our finger on it. Maybe it's a feeling? A sensation? A faint whiff of despair?

Or maybe, just maybe, it's the faint scent of yesterday's coffee, still wafting through the vents?

Theories are like kittens, they just won't sit still!

Some possible answers, but no guarantees:

Back to the beginning, or not.