Just how long is 380,000 years after the big bang?

Deep Breadth
Feb 18, 2018 · 2 min read
Deep Breadth

Written by

Big pictures, thresholds, and cross sections.

Welcome to a place where words matter. On Medium, smart voices and original ideas take center stage - with no ads in sight. Watch
Follow all the topics you care about, and we’ll deliver the best stories for you to your homepage and inbox. Explore
Get unlimited access to the best stories on Medium — and support writers while you’re at it. Just $5/month. Upgrade