For all the political chaos and the ongoing misery of the pandemic, important human progress is still being made. The New York Times reports that a heart from a gene-edited pig has been successfully transplanted into a human patient.

“This is a watershed event,” said Dr. David Klassen, the chief medical officer of the United Network for Organ Sharing and a transplant physician. “Doors are starting to open that will lead, I believe, to major changes in how we treat organ failure.”

The internet wants you to be angry. Don’t give in without remembering all the reasons to be optimistic. Here’s a whole bunch more.