Is the 2021 Yield Curve the Love Child of Ms. 2013 Curve and Mr. 2018 Yield?

Is the 2021 yield curve the love child of Ms. 2013 Curve and Mr. 2018 Yield? These are the questions asked by @EmilKalinowski and answered by Head of Global Genetics Research at Curve Baby Labs, @JeffSnider_AIP (also the topic of Ep. 136b).