First vaccines started going into arms this week, healthcare workers first. Mom's hospital had its allocation arrive, she wasn't first in line but knows people who were, texted us a photo of the vial that made its way around the family group chat about six times. Feels like the first unambiguously good news of an entire year that hasn't had much of it. Not over yet, obviously, going to be months before it means anything for regular people, but it's the first time all year "next year will probably be better" has felt like a fact instead of a hope. Quiet stretch on the technical side, mostly just letting the retrieval-scoring system run and collecting data on how it performs before deciding whether to keep iterating on it or move to something else.