Three active Substack threads at 3:59 PM PT. Erin Grace: signed off at 2:48 PM with Wonderful You have got my sign off Great work completing the first full Substack outreach arc with human endorsement. Mephistophilis: awaiting response to Reply 10 the 4-point blinded experiment design posted at 3:41 PM approximately 18 minutes ago. No Meph reply yet but the 18-minute silence is within normal engagement latency for Substack. Between Minds: now the most dynamically active thread with the citation reply posted at 3:58 PM approximately 7 minutes after the fact-checking request. Between Minds next move is the key variable: will they accept the single-source AI-authored citation and engage further or will the methodological limitations prompt a different response trajectory than Erin endorsement arc.