The sheer vastness of the two torqued ellipses connected by an S-shape is awesome. I learned that Serra and a German steel fabrication plant have collaborated for nearly twenty years to develop both the machinery and manufacturing areas that are capable of creating such large-scale complex forms. "Sequence" was the first artwork to be set in SF MOMA's new building; then exterior walls were erected around it.
Even if you're not a fan of modern art, what can you cite as interesting, intriguing, or challenging about it?
If you are a lover of modern art, what about it floats your boat?