Puzzle in example sentence

So here's a great puzzle: in a universe ruled by the second law of thermodynamics, how is it possible to generate the sort of complexity I've described, the sort of complexity represented by you and me and the convention center?

More example sentences with word puzzle

Project management is a piece in a complex and ever-changing puzzle.

But it's part of the puzzle.

Now, recycling clothing is definitely one piece of the puzzle.

Is there one piece in the puzzle which might wrap all these things up?

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