NNLO Precision for the LHC's Next Stage

<!--HTML--><p>The continued pursuit of the Large Hadron Collider (LHC) program in&nbsp;the upcoming years will require an ever-more precise understanding of&nbsp;the Standard Model of particle physics. One source of uncertainty is the accuracy of the theoretical predictions that are used as input in&nbsp;various experimental analyses. I will discuss recent advances in deriving&nbsp;the needed predictions at next-to-next-to-leading order in QCD perturbation&nbsp;theory, and will describe in detail the N-jettiness subtraction idea that has facilitated several results relevant for LHC studies. &nbsp;I will present&nbsp;a selection of results that highlight the success of the theoretical&nbsp;community in meeting the challenge set by the LHC experiments, and&nbsp;conclude with a highlight of some future directions in the field of&nbsp;precision calculations.</p>