The smaller a design, the harder it may be to detect. But miniature designs can inspire awe more than large ones.
Right now, within your bodies this little engine is cranking away. Without this machine, oxygen-dependent life could not exist.
If you tried to build a pipe that had to rotate on its long axis while maintaining its angular shape, could you do better than this?
Get acquainted with another irreducibly complex molecular motor. This one is a master at unfolding proteins. Its method is ingenious.
From back when I was a sophomore taking biochemistry, one particular event stands out in my memory, perhaps because it was such an odd thing.