It is a BEAUTIFUL morning in # Sudbury … perfect to finally grok the “freeze in” mechanism for establishing a relic density of cosmic dark matter! I am also very excited for @ jodi to return to Canada from Europe today. https://chirp.cooleysekula.net/attachment/373036df6cf2a448cd0cd3b1f8cd8d1b0a9f0a755bbb52a2f862edde0ccaf252/view